Over one hundred and seventy sites accross the globe in many languages, plus special interest sites. Enjoy.

Advogato is an online community site dedicated to free software development, created by Raph Levien. It describes itself as "the free software developer's advocate." Advogato was an early pioneer of "online diaries", which later became known as blogs, and one of the earliest social networking websites. Advogato combined the most recent entries from each user's diary together into a single continuous feed called the recentlog. This directly inspired the creation of the Planet aggregator somewhat later.

AmieStreet is an indie online music store and social network service created in 2006 by Brown University seniors Elliott Breece, Elias Roman, and Joshua Boltuch, in Providence, Rhode Island.

Books Anobii is a social networking site targeted to worldwide booklovers. The idea behind aNobii is simple: create an online platform for avid-readers to share reviews, recommendations, and most important of all, find other similar-taste booklovers.

A Small World The small world experiment comprised several experiments conducted by Stanley Milgram examining the average path length for social networks of people in the United States.

Athlinks is a free-of-charge social networking website which primarily presents race results for Running, Swimming, Cycling, Mountain Biking, Triathlon, and Adventure Racing.

The Auteurs is an online film website that integrates elements of social networking with video streaming. It has been described as an "online cinematheque."[1] The site allows users to watch feature films, usually for a fee, and connect with others with similar tastes in movies.

Avatars United is an early graphics-based multi-user highly interactive role-playing computer game, created on the University of Illinois' Control Data Corporation PLATO system in the late 1970s. It has graphics for navigating through a dungeon, and chat style text for player status and communication with others. It can currently be played online via Cyber1 or the NovaNET system.

Baby Center is a parenting website providing information on conception, pregnancy, birth, and early childhood for parents and parents-to-be. The site has been online since August 11, 1998.

Badoo is a multi-lingual social networking website, managed out of a London headquarters, but owned by a company in Cyprus.

Bebo Bebo, an acronym for "Blog early, blog often", is a social networking website, founded in January 2005.

Bigadda is a social networking website belong to the internet and new media vertical[1. 1] of Reliance Entertainment, part of the Reliance Anil Dhirubhai Ambani Group. It claims to be the largest and the fastest growing youth networking site in India

Big Tent In politics, a big tent party or catch-all party is a political party seeking to attract people with diverse viewpoints. The party does not require adherence to some ideology as a criterion for membership.

Biip is the third largest Internet-based community in Norway (after Facebook and Nettby) with more than 320,000 users and profiles (as of May 5, 2008). It was founded on June 1, 2005, and is owned by Mediehuset Nettavisen AS, a Norwegian news company, the Danish publishing house Egmont and the founders. Users use nicknames instead of real names. Users' profiles are visible to all other users.

Black Planet is an online niche social-networking site targeted especially for the Black community. It was launched September 1 1999 by Omar Wasow.

Blogster is a blogging community that features specific-interest blogs. Blogster maintains an online community of users who publish content, images, video and more. Blogster members can network and collaborate by creating a blog, building a personalized profile, creating friend lists, commenting on articles and interacting in an online community.

Bolt was originally marketed towards teenagers to create content, meet people, and play games in a safe, no pressure, and age-appropriate environment. However, as members aged and stayed with the site, more and more members were college students and/or between 18-24. These members tended to be more interested in current events, religion, and politics, and kept the message boards active with lively heated debate.

Books I Read is an online community of book enthusiasts. weRead started out as a social cataloging application on Facebook in June 2007 and has since expanded to over 3.1 million active members across Facebook, MySpace, Orkut, Hi5, and Bebo. iRead is part of uGenie Inc[1] , a privately held company based in San Mateo, CA, funded by BlueRun Ventures and Sierra Ventures.

Buzznet is a photo, journal, and video-sharing social media network. Like other social networking sites, Buzznet is a place for members to share content based on their personal interests. Unlike classic social networks, which focus primarily on messaging and profile pages, Buzznet members participate in communities that are created around ideas, events and interests; most predominantly, music, celebrities and the media.

Cafe Mom is an ad-supported social networking website specifically targeted at mothers, offering member-generated content such as profiles, journals, groups, photos, and polls. The site launched in December, 2006 and within one year became the most trafficked website for women (by page views) on the Internet, according to comScore.

Care 2 is a social network website that was founded by Randy Paynter in 1998 to help connect activists from around the world. It has a membership of approximately 9 million people.Care2's stated mission is to help people make the world a better place by connecting them with the individuals, organizations and responsible businesses making an impact.

Cellufun is a mobile social and gaming community where people meet and play social games, and is rated in the Top 10 US Mobile websites by Ground Truth. Cellufun is available on any phone with a data plan, including smart phones, with no download required. People around the world can access the Cellufun platform on any mobile network in more than 10 languages to create personal avatars, play social games, chat, shop and make friends

Classmates is a social network service created in 1995[1] by Randy Conrads who founded Classmates Online, Inc.[2] The social media website helps members find, connect and keep in touch with friends and acquaintances from throughout their lives — including kindergarten, primary school, high school, college, work and the United States military.

Cloob is a Persian-language social networking website, mainly popular in Iran. After the locally (and internationally) popular social networking website Orkut was censored by the Iranian government, a series of local sites and networks, including Cloob, emerged to fill the gap. Its main page contains the title Iranian Virtual Society and states that all content is controlled in accordance with Iranian law, a policy intended to lower the risk of government censorship. Its has an invite-only registration system.

College Blender was launched on November 24, 2009, replacing The College Blog Network that opened in late January 2008 [1], and features college student, alumni, and faculty blogs and forum posts from around the country. Compared to The College Blog Network, CollegeBlender is a more robust online community, takes the blog network a step further by adding advanced commenting, an iframe toolbar, an improved user interface, an open discussion forum, and a planned section for campus-specific tweets.

Couch Surfing is the largest hospitality exchange network, with over 1.7 million members in 237 countries and territories. According to Alexa it is currently the most visited hospitality service on the Internet, averaging around 40 million daily page views July-December 2009.

Daily Booth is a photoblogging website designed for users to take a photo of themselves every day with a caption, in order to document and share their life with others, thus the slogan "your life in pictures." It is similar to social-networking websites such as Twitter in that you can follow other users and allow them to follow you in turn and get real-time updates on what other people are doing. The user base is geared towards teens.

Daily Strength is a social networking website where users provide one another with emotional support by discussing their struggles and successes with each other. The site contains online communities that deal with different medical conditions or life challenges. [1] As of November 4, 2007, DailyStrength has created over 500 support groups [2] focused on issues such as depression, divorce, parenting, and a wide variety of cancers.

Decayenne is an invite-only online social network service founded in 2001 [1] in Düsseldorf (Germany) by Phillip Eissing, Alexander Eissing, Marco Schierhorn and Ioannis Voudouris. Its member pool aims at exclusivity and is composed of mostly Europeans and Americans. Though primarily a website, the Decayenne community meets offline in both official and unofficial events, usually in international cities such as London and New York. Official charity events, held in cities such as Zurich, benefit UNESCO and Kids of Africa

devianArt (official typeset as deviantART; commonly abbreviated as dA) is an online community showcasing various forms of user-made artwork. It was first launched on August 7, 2000 by Scott Jarkoff, Matthew Stephens, Angelo Sotira and others. DeviantArt, Inc. is headquartered in the Hollywood area of Los Angeles, California, United States. As of October 2009[update] the site consists of over 11 million members, over 100 million submissions, and receives around 100,000 submissions per day. The domain deviantart.com attracted at least 36 million visitors annually by 2008 according to a Compete.com study

Digital verse is an open online community where poets post their work, meet other poets, and trade insight on their work. It was established on Valentines Day, 2006 with the goal of being, "a clean well-lit place for people to present their poetry without being bombarded by contest notifications and all the other nonsense that seem to haunt online poetry." The site is often seen as unique in that it has a poetry search engine which lets one filter poems by color, mood, and complexity. For users it also comes with tools that help track manuscript submissions, set up writing circles, and compile one's work into single documents for the purpose of creating backups and chap books.

Disaboom is a social networking website, described by founder Dr. Glen House as a premier interactive online community dedicated to improving the way individuals with disabilities or functional limitations live their lives. The site serves as a comprehensive resource for those living with disabilities, as well as their family members, friends, caregivers, and employers. The website is owned by Disaboom, Inc. a for-profit, publicly traded company that is listed on the OTCBB under the symbol DSBO.OB.

Dol2day is the name of a social networking platform for politically interested German speaking people. dol2day is the abbreviation for “democracy online today”. Most of the members are college and university students, pupils and younger professionals, in particular from Germany. Average age is between 20 and 30 years.

Don't Stay In commonly abbreviated to DSI, is a social networking site based around clubbing. Primarily covering the UK it lists nearly 185,000 events and has over 430,000 verified members. Members are encouraged to upload picture galleries to the site for events they've attended, add events and venues and otherwise contribute. 'Spotters' are DSI members who review and photograph events and promote DSI. Alexa ranks DSI as one of the top 7,000 websites in the world.

Draugiem is a social networking website launched on 2004. It is currently the largest social networking website in Latvia with approx. 2.6 million registered users. Website plays important part in everyday life of internet users of Latvia and is frequently used as a tool of communication instead of e-mail.

Elf Town is an Internet community or social networking site for people interested in fantasy and science fiction. It was started as the official Elfwood social networking site in February 2002 by Henrik Wallin. Later on the project became separated and more like sister sites, and the split became more tangible in 2007 when Elfwood's servers moved from Lysator, while Elftown's hardware remained there.

Epernicus is a social networking website and professional networking platform resource built by scientists for research scientists. Its main goal is to help scientist to find the right people with the right expertise at the right time[1]. It is based in Cambridge, Massachusetts.

Eons is a social networking site for BOOMers, launched by Monster.com founder Jeff Taylor in July 2006. The site provides games, photo and video sharing, groups, how-to lists, interviews, links and information on health, relationships, fitness, debt, retirement and insurance.

Experience is a free social networking website of passion-based online communities premised on connecting people through shared life experiences. With an interactive, user-submitted network of personal stories, confessions, blogs, groups, photos, and videos, the company has collected over 3.5 million real-life experiences as of November 2009. Users can join communities organized around experiences and passions and view shared experiences organized by city and region to connect and interact with people other people who share their interests, passions and experiences.

Exploroo is a free-access social network website that is operated and privately owned by Exploroo Pty Ltd. It is an information loaded one-stop website for everything travel related. People can add friends and send them messages, and can also add travel stories or videos and review photos and articles which are all related to travel around the Globe. Travel agents can also join and connect with travellers.

Facebook is a social networking website that is operated and privately owned by Facebook, Inc.[1] Since September 2006, anyone over the age of 13 with a valid e-mail address (and not residing in one of the countries where it is banned) can become a Facebook user. Users can add friends and send them messages, and update their personal profiles to notify friends about themselves. Additionally, users can join networks organized by workplace, school, or college. The website's name stems from the colloquial name of books given to students at the start of the academic year by university administrations in the US with the intention of helping students to get to know each other better.

Faceparty is a UK-based social networking site allowing users to create online profiles and interact with each other using forums and messaging facilities similar to email.

Faces is a social networking website, winner of 2006 UK Website of the Year and Best Community Site, with a goal to encourage online social interaction, launched in March 2004. The website has an Alexa Internet traffic ranking of 12,875.

Fetlife is a social networking website that serves people interested in BDSM, Fetishism and Kink. It describes itself as similar to Facebook and MySpace but run by kinksters. It is also private, in that membership is required to view content. The site is not indexed by search engines. Membership is free and includes all features except access to videos uploaded by members. Donations to FetLife give the member access to videos as well.

Film Affinity (the English film, film and affinity, affinity: affinity cinephilic) is a website dedicated to movies created in 2002 by critic Paul Kurt and programmer Daniel Nicholas. It is currently one of the largest databases on Spanish cinema [citation needed], although it has its English version.

Fledgewing is an online community aimed at entrepreneurial university students launched in February 2009. Founded by two NYU Stern students in October 2007, the site currently supports 170 universities worldwide. Having no costs or advertising, the social network aims to connect aspiring student entrepreneurs with one another as well as with mentors, investors, and industry professionals

Flixster is a social movie site allowing users to share movie ratings, discover new movies and meet others with similar movie taste. The site is based in San Francisco, CA and was founded by Joe Greenstein in 2007. Flixster is the parent of website Rotten Tomatoes since January 2010.

Flickr is an image and video hosting website, web services suite, and online community. In addition to being a popular website for users to share and embed personal photographs, the service is widely used by bloggers to host images that they embed in blogs and social media. As of October 2009[update], it claims to host more than 4 billion images.

Fotolog is a web based shared photoblog web site. With over 23 million registered users, it is one of the oldest and largest sites for sharing pictures through online photo diaries or photo blogs.

Foursquare is a location-based social networking website, software for mobile devices, and game. Users "check-in" at venues using text messaging or a device specific application. They are then awarded points and sometimes "badges." The service was created by Dennis Crowley and Naveen Selvadurai; Crowley had previously founded the similar project Dodgeball, which Google bought in 2005 and shut down in 2009. As of early 2010, the website has about 450,000 members.

Friends Reunited is a portfolio of social networking websites based upon the themes of reunion with research (separate site Genes Reunited ), dating and job-hunting. The first and eponymous website was created by a husband and wife team in the classic back bedroom internet start-up; it was the first online social network to achieve prominence in Britain, and it weathered the dotcom bust. Each site works on the principle of user-generated content through which registered users are able to post information about themselves which may be searched through by other users. A double-blind email system allows contact between users. Formerly, the site cost £7.50 per year to use but is now free

Friendster is a social networking website.[2][3] Its headquarters are in Sydney, Australia.[4] The service allows users to contact other members, maintain those contacts, and share online content and media with those contacts.[5] The website is also used for dating and discovering new events, bands, and hobbies. Users may share videos, photos, messages and comments with other members via their profile and their network.

Fruhstuckstreee (German: breakfast meeting) is an international, multi-lingual breakfast club initiative located in over 50 cities in Europe and Australia. Founded in July 2001, the social networking site allows gentle people to meet for breakfast, share their hobbies and special interests with other members of the community. In March 2009, there were 14,800 registered members.

Fubar is a social network launched in Summer-Early Fall 2005 as the first "online bar". In October 2007, they teamed up with Jangl to provide their members with the ability to call other members anonymously. The site is for users 18 and older, and is free to use. Registered members initiate conversations through buying each other virtual drinks with "fubucks" earned through using the site.

Gaia online is an English-language, anime-themed social networking and forums-based website. It was founded in 2003 as Go-Gaia.com, but the name was changed to GaiaOnline.com in 2004 by its owner, Gaia Interactive. Gaia originally began as an anime linklist and eventually developed a small community, but, following a statement by founder Derek Liu (username "Lanzer"), the website moved towards social gaming. It eventually became the forum-based website it is now. Today, over a million posts are made daily and it is visited by 7 million unique users each month. Gaia also won the 2007 Webware 100 award in the Community category.

GamerDNA is a social media company for computer and video game players founded on 2006-09-21, now owned by Crispy Gamer. The name is usually spelled with a lower case g: gamerDNA. Members may tag themselves with information on games they have played, server names and guild affiliations, and use this information to find people they have played with in the past, or find guilds or other gamers to play with based on play style. The company is funded by Flybridge Ventures.

Gather is a social networking website designed to encourage interaction through various social, political and cultural topics. Its headquarters are in Boston, Massachusetts. The website was founded in 2005 by Tom Gerace, an entrepreneur who previously founded the affiliate marketing company, Be Free. Gather has attracted investments and partnerships from media companies ranging from McGraw-Hill and Hearst Publications to American Public Media and a member of the McClatchy family. Starbucks chose Gather over other social networking sites because of its adult demographic. Lotus founder Jim Manzi was an early investor. Gather is one of very few recent startups to use television advertising.

Gays is an LGBT social networking website established by the Hong Kong-based Gays.com Ltd. In 2006, the purchase of the high profile domain name at the price of US$500,000 by German entrepreneurs Julius and David Dreyer was a record sale for the year, and one of the highlights of the domain name industry.The launch of the website took place in Shanghai on May 17, 2008 and was timed to coincide with the sixth International Day Against Homophobia. Unlike competitors in the same sex online dating category, Gays.com offers members the freedom to upload as many pictures and videos as they like at no charge and touts itself as "the world's first GLBT social networking website that is designed for real people with real names and actual relationships"

Geni is a genealogy-related social networking website launched in beta mode on January 16, 2007 by Geni, Inc. Over 70 million profiles were created on Geni by over two million users as of September 30, 2008. Geni is also the parent company of enterprise messaging service Yammer.

Gogoyoko is a social networking music website and an online music store where artists and music fans can interact and transact. Artists and record labels sell their music and make it available for listening via streaming. Music fans can listen to music and buy it. The site's main idea is for artists to sell and distribute their music, without having to go through a record label or digital aggregators, though signed artists and record labels can also use the service.

Good reads is a privately run "social cataloging" website started in December 2006 by Otis Chandler, a software engineer and entrepreneur. The website permits individuals to sign up and register books to create their library catalogs and reading lists. As of December 2007 the site has over 650,000 members and over 10,000,000 books added. By January 2010 that had reached 2,900,000 members and 78,000,000 books added.

Google buzz is a social networking and messaging tool from Google, designed to integrate into the company's web-based email program, Gmail. Users can share links, photos, videos, status messages and comments organized in "conversations" and visible in the user's inbox.Buzz enables users to choose to share publicly with the world or privately to a group of friends each time they post.

Grono is a large social networking website in Poland. Apart from many discussion forums it allows to share photos, find cultural events in particular cities, sell property and find work. Although the site itself remains free, there are a number of additional features for paying subscribers, such as the ability to moderate your own forums, take part in competitions, upload more photos and remove on-site advertisements. It requires an invitation from one of the members to register. It currently has over 2 million members.

Habbo (previously known as Habbo Hotel) is a social networking website aimed at teenagers. The website is owned and operated by Sulake Corporation. The service began in 2000 and has expanded to include 32 online communities (or "hotels"). As of June 2008 over 118 million avatars have been registered. There are an average 8 million unique visitors monthly, and 75,000 avatars are being created every day. The 100 millionth avatar was created on Habbo UK in June 2008.

hi5 is a social networking website. The company was founded in 2003 by Ramu Yalamanchi who is also the current CEO.As of January 2009, Hi5 claims to have over 60 million active members. In Hi5, users create an online profile in order to show information such as interests, age and hometown and upload user pictures where users can post comments.

Hospitality is an international, Internet-based hospitality service of appr. 553,000 members in 226 countries[1] Its members use the website HospitalityClub.org to coordinate accommodation and other services, such as guiding or regaling travelers. Hospitality Club is currently the second largest such hospitality network.

Hyves is a free Dutch social networking site which has been online since October 2004. The site was launched by Raymond Spanjar, Koen Kam and Floris Rost van Tonningen. The name Hyves comes from the English Beehive - not from Hives, hereby comparing the users to bees in a hyve. Since the domain hives.nl was already registered, they chose to call their website Hyves.

Lbibo which stands for iBuild, iBond, is an Indian social networking site. It is an umbrella site that offers a variety of applications under its social network.Ibibo, is funded by the electronic media arm of South African company Naspers,MIH. China based Tencent has expressed interest in a long term capital deal.

Indaba is a web-based company that lets musicians collaborate and make music online. Indaba has a mixing console that lets musicians edit their music in private and public sessions. The site also hosts remix competition with popular musicians. Its members span all genres and live around the world.

IRC Galleria (Finnish for "IRC gallery") is the largest social networking website in Finland. It was founded in December 2000 by Tomi Lintelä as a photo gallery for the Finnish users of Internet Relay Chat (IRC). As of April 2009, IRC-Galleria has over 500,000 registered users and 9 million images. Over 90% of the users are active users who use the service on a weekly basis

Italki is an online destination for language learning, comprising a social network and marketplace. The company is based in Shanghai, China. italki was founded by American and Chinese entrepreneurs.

InterNations is an international social network service, launched as a Web 2.0 website in its Beta version on September 11, 2007 and designed with expatriates in mind. Through this online platform people living and working abroad, their partners and others with a strong interest in international relations and international business can interact through forums, newsgroups, a private messaging service and various common features of online networks. This ‘infotainment’ combination of a virtual community with an expat-specific focus on issues like relocation and expat housing, foreign affairs and expatriate institutions makes it a unique addition to the number of social networking sites on the Net.

Itsmy is a pure mobile social networking service which combines mobile communication and personal content sharing. It is a brand of Gofresh, Munich Germany. 2008 more than 2 1/2 million mobile phone user worldwide, used the Versions available in English, German, Italian, Spanish and Japanese. The community offers its users advertising supported mobile content and communication services, like other similar social networking sites

iWiW (abbreviation for International Who is Who) is a Hungarian social networking web service started on April 14, 2002 as WiW (Who Is Who). As of 2007 August[update], it has 2,6 million registered users with real names. The site is invite-only. Every user can provide personal information such as the place they live in, date of birth, schools and universities they attended, workplaces, interests and pets. One can find friends by a search tool or looking through one's acquaintances' acquaintances.

Jaiku is a social networking, micro-blogging and lifestreaming service comparable to Twitter. Jaiku was founded in February 2006 by Jyri Engeström and Petteri Koponen from Finland and launched in July of that year. It was purchased by Google on October 9, 2007.

Jammer Direct is a social networking website with its primary focus on the artistic and music scenes of the Midwestern United States, created in 2007 by Ryan Martin, a software developer from Fort Wayne, Indiana. Jammer Direct is also a community portal for people to use to promote whatever music, artwork, or creative product they wish to promote. Currently Jammer Direct is ad-free and has no plans of accepting any external advertising on its website.

kaioo is a non-profit social network website that started in November 2007 as a beta version in English and German. It was founded by the German executives Thomas Kreye and Rolf Schmidt-Holtz.kaioo offers its users standard features of social networking websites. They can create profiles, communicate with friends, join groups, upload pictures, etc. The site features a "match" function first seen on Orkut: a user can express interest in another user, but that user will only learn about it if he/she in turn expresses interest in the first user.

Kaixin001 (Chinese: 开心网; pinyin: Kāixīnwǎng; aka "Happy Net") is a social networking website launched in March , 2008.In 2009, Kaixin001 ranks the 13th most popular website in China according to Alexa Internet.

Kiwi box is a social network as well as an online magazine that is owned by Magnitude Information Systems (OTC BB:MAGY.OB), founded in 1999.

Last is a popular Internet radio site for music, founded in the United Kingdom in 2002. It claims over 30 million active users based in more than 200 countries. On 30 May 2007, CBS Interactive acquired Last.fm for £140m ($280m USD).Using a music recommender system called "Audioscrobbler", Last.fm builds a detailed profile of each user's musical taste by recording details of the songs the user listens to, either from Internet radio stations, or the user's computer or many portable music devices.

Library Thing is a social cataloging web application for storing and sharing personal library catalogs and book lists. Based in Portland, Maine, LibraryThing was developed by Tim Spalding and went live on August 29, 2005. As of September 2009 it has 920,000 users and nearly 45 million books catalogued. Users (informally known as thingamabrarians, a term coined by contributor RJO) can catalog personal collections, keep reading lists, post book reviews, and chat to other users who have the same books.

Life knot is a social networking website with a focus on shared interests and hobbies. It was founded in November 2003 by Matt Muro, is based in Boston, MA and is privately owned.The site has been noted twice in The Sunday Times, Get clicking with a like-minded stranger, Social whirl online; the Gothamist, Lifeknot: The New Online Meeting Place; the Denver Post, Internet hookups lead to recreation - and romance Linkedln (pronounced /ˈlɪŋkt.ˈɪn/) is a business-oriented social networking site. Founded in December 2002 and launched in May 2003, it is mainly used for professional networking. As of 11 February 2010, LinkedIn had more than 60 million registered users, spanning more than 200 countries and territories worldwide.

Listography is a book and personal web application which allows users to create and share lists. Through list-making, users can shape an autobiography and create references for themselves and others. Some common types of lists are: favorites, wishlists, to do lists, catalogues, memories, and photo lists. Users are sometimes called listographers and their collection of lists are referred to as listographies. Listography is a trademarked name. Listography.com. The Listography Book were featured in Boing Boing Television's premiere as a place to capture one's autobiography in lists.

Live Journal (often abbreviated LJ) is a virtual community where Internet users can keep a blog, journal or diary. LiveJournal is also the name of the free and open source[4] server software that was designed to run the LiveJournal virtual community. LiveJournal's differences from other blogging sites include its WELL-like features of a self-contained community and some social networking features similar to other social networking sites.

Live mocha is a social network service where users can learn languages through audio-visual lessons, peer tutoring tools and support systems. Users can aid others in learning the languages that they are proficient in while learning other languages themselves. This is achieved through peer reviewing of submissions, live text and audio conversations, and other learning systems.

Lunar Storm in Swedish often shortened to Lunar, is a commercial, advertisement financed Swedish social networking website for teenagers, of which was also available in the UK before 2007. "LunarStorm" is operated by a company called LunarWorks. According to the company's official statistics, the website has 1.2 million members, of whom some 70% are 12–17 years old.

Meetin or the MEETin group, is a web-based social community dedicated to providing a casual social environment for people without charging membership fees, or otherwise profiting from events. Founded in Washington, DC in 2003, the MEETin group now spans around 90 cities worldwide and has over 90,000 members.

Meetup (also called Meetup) is an online social networking portal that facilitates offline group meetings in various localities around the world. Meetup allows members to find and join groups unified by a common interest, such as politics, books, games, movies, health, pets, careers or hobbies. Users enter their ZIP code (or their city outside the United States) and the topic they want to meet about, and the website helps them arrange a place and time to meet. Topic listings are also available for users who only enter a location.

Meet the Boss is a business networking tool for business executives around the world, across all vertical industries. Content is all in English. MeettheBoss facilitates secure video conferencing, IM, email and SMS between members. Members have individual profiles with listed business interests. This site features weekly interviews with industry leaders heading large global companies. Discussion groups are set up with QandA sessions to provide opportunities for users to make contacts and gain insight from industry leaders. The concept has received global media attention.

Mixi (ミクシィ Mikushī, TYO: 2121) is one of several social networking websites in Japan. As of May 2008, mixi had over 10 million users and an 80% share of the social networking market in Japan. Founded by Kenji Kasahara.

mobikade is a free mobile social networking service aiming to bring Japanese mobile SNS sites to Europe, starting off in the UK. It differentiates from other social networking sites by the fact that it is an exclusively mobile based community and accessible only through the mobile phone.

Mocospace is a social network specifically designed for use on a mobile device, also known as a mobile social network. The features of the site are similar to other social networking sites. Features include mobile chat, instant messaging, photo and video sharing, as well as forums. MocoSpace is an off deck mobile site, which means that it isn't featured on the start page of cell phone carriers but is a standalone mobile web site that can be visited by any phone with mobile web access. MocoSpace is one of a number of Boston-area startups focusing on developing applications for the mobile web. MocoSpace is the largest mobile social network in the U.S. with well over 10 million registered users and over 2.5 billion monthly pageviews. It is also one of the largest mobile websites of any type in the U.S. as reported by Hitwise and Opera.

MOG is a social networking site where computer users who listen to their music primarily on their computers or iPods can set up personal pages with their musical interests and listening history. There are tools for connecting with other similar users. MOG is similar to Last.fm, but it first uploads a listing of a user's digital music collection to their MOG page, then it keeps track of what music is played on the user's computer. Other features include music-focused blogging, dedicated pages for artists, albums and songs, tagging of music items, and direct links to iTunes and Amazon for music purchases.

Mouth Shut is a user-generated content and consumer review site on the Internet. At the core of MouthShut lies a global Web 2.0 social media platform. Any visitor can become a member (for free) and then can influence or be influenced by others. By writing reviews, sharing photos and diaries, members create buzz about brands and products.

Multiply is a social networking service with an emphasis on allowing users to share media - such as photos, videos and blog entries - with their "real-world" network. The website was launched in March 2004 and is privately held with backing by VantagePoint Venture Partners, Point Judith Capital, Transcosmos, and private investors. Multiply has over 11 million registered users. The company is headquarterd in Boca Raton, Florida.

Muxlim is a social networking website service for Muslims. Founded in 2006 by Mohamed El-Fatatry and Pietari Päivänen of Finland, the company was created as a social media website which would adhere to the principles of Islam concerning vulgarity, offensive content, and adult material[1]. The service includes the social networking site, My Muxlim; a Muslim sites search engine, Search.Muxlim.com; and Quran.Muxlim.com which browses the Quran in 25 languages. The company became a finalist for the Red Herring 100 for promising private ventures.[citation needed] In 2008, it was named one of the top 100 high growth success stories in Finland by Helsingin Sanomat.

My Anime List often abbreviated as MAL, is a social networking website. The site provides its users with a list-like system to organize anime and manga. It facilitates finding users who share similar tastes and provides a large database on anime and manga. The website was created and is actively maintained by Garrett Gyssler, who goes by the alias of "Xinil".

My Church is a Christian social network which was launched on September 6, 2006. It offers a social network service for Christian churches that follow the Nicene Creed, with features modeled after those found in MySpace and Facebook. In addition to standard services offered by social networking websites, MyChurch allows churches to post sermon podcasts, have event calendars, and collect tithes from members (for a service fee of $12 per month).[5]

My Heritage is a family-oriented social network service and genealogy website. It allows members to create their own family websites, share pictures and videos, organize family events, create family trees, and search for ancestors. With 30 million users, MyHeritage is one of the largest sites in the social networking and genealogy field.

My Life; (formerly Reunion.com) is a social network service founded in 2002 by Jeffrey Tinsley after meeting his wife at their high school reunion. The company began with the acquisition of highschoolalumni.com and PlanetAlumni.com.[1] The website claims to help members find and keep in touch with friends, relatives and lost loves.

My LOL is a social networking website aimed at teenagers.[1] founded in November 2006. The site has around 90,000 members[1] from countries including United States, Canada, the United Kingdom, New Zealand and Australia. It is currently owned by 19 year-old Australian Anthony Lipari.

My Opera is the support community for the Opera web browser. More than 7,500 new members join per day, and the site has more than 4.1 million members. In addition to being a support site for the Opera browser, My Opera is a social networking site, featured with blogs, photo albums, and more.

My Space is a social networking website. Its headquarters are in Beverly Hills, California, US, where it shares an office building with its immediate owner, News Corp. Digital Media, owned by News Corporation. MySpace became the most popular social networking site in the United States in June 2006. According to comScore, MySpace was overtaken internationally by its main competitor, Facebook, in April 2008, based on monthly unique visitors. MySpace employs 1,000 employees, after laying off 30% of its workforce in June 2009; the company does not disclose revenues or profits separately from News Corporation. The 100 millionth account was created on August 9, 2006, in the Netherlands.

My Yearbook is a free Internet social network service similar to other social networking sites. It could be seen as a less polished version of the popular social networking site MySpace. The site's user base is over 90% American, with 75% of its new memberships from the United States and 25% from other countries. U.S. Venture Partners and First Round Capital are providing the $4.1 million in funding.

Nasza klasa (nasza klasa - pl. our class) is a large Polish social networking service, bringing together school's students and alumni. Nasza-klasa is a website similar in concept to the American Classmates, allowing its users to register from particular schools and graduation years. The users are able to keep and maintain a personal page containing information such as their name, age, photos, interests and the history of schools and classes attended. Nasza-klasa doesn't require an invitation to join, however registration is necessary to browse the service. The leader of the project is Maciej Popowicz from Wrocław.

Net log is a Belgian social networking website specifically targeted at the European youth demographic. The site was founded in July 2003 in Ghent, Belgium, by Lorenz Bogaert and Toon Coppens, and as of December 2009[update] has 59 million registered users across 25 languages. On Netlog, members can create their own web page, extend their social network, publish their music playlists, share videos, post blogs and join groups.

Nettby (Norwegian: Web City) is the second largest Internet-based community in Norway (after Facebook) with more than 980,000 users and profiles (as of January 3, 2009). It was founded on September 14, 2006, and is fully owned by VG Multimedia AS, a Norwegian news company, and Nettby Community Holding AS. Users use nicknames instead of real names. Users' profiles are visible to all other users. "Communities" on Nettby are linked to the city (or other geographical unit, such as town or village) that the user claims as his or her current residence. Trondheim is the largest community, with over 36 000 "inhabitants".

Nexopia is a popular Canadian social networking website based in downtown Edmonton which was created by Timo Ewalds. It is designed as a general interactive site for people aged 14 and up, but the age limit recently was lowered to 13.[1] Users are able to create and design their own profiles, friends list, blogs, galleries, articles, and forums. Interaction is accomplished through an internal personal messaging system, and public user comments on profiles, blogs or through threads and posts on the forums.

NGO Post is a non-profit organization based in India and the US that allows citizen journalism in social work field by providing an online forum for people to share and discuss various social-welfare ideas. Everyday, worldwide, non-profit organizations work hard on solving problems in their area without knowledge of how other groups are addressing similar issues elsewhere. This lack of information results in re-inventing the wheel, wasting time, manpower and monetary resources globally. NGO Post is working on bridging this information gap amongst the social workers by acting as a platform for easy and democratic sharing of information, and providing features to promote discussions and collaborations. Launched on 25th August 2007 by a group of students working or studying in India and the US, NGO Post has grown to have more than 15000 registered members with readership in over 194 countries worldwide.

Ning is an online platform for people to create their own social networks,[2] launched in October 2005. Ning was co-founded by Marc Andreessen and Gina Bianchini. Ning is Andreessen's third company (after Netscape and Opsware). The word "Ning" is Chinese for "peace" (simplified Chinese: 宁; traditional Chinese: 寧; pinyin: níng), as explained by Gina Bianchini on the company blog.

Odnoklassniki (Classmates in Russian) is a social network service for classmates and old friends reunion popular in Russia and other former Soviet Republics. It was created by Albert Popkov in March 2006.The website currently claims that it has more than 45 million registered users and 10 million daily unique visitors. The website also currently has an Alexa Internet traffic ranking of 95 worldwide and 6 for Russia.The website was a recipient of the Runet Prizes in 2006 and 2007.

One Climate is a nonprofit internet climate news, social activism and social networking site, and part of internet portal uk.OneWorld.net. It received international media attention during the 2007 United Nations Climate Change Conference for its 'Virtual Bali' initiative, and also during the COP15 event in Copenhagen.

One World TV is a nonprofit internet video sharing and social networking site aiming to promote Global Justice and Social Good through film and documentary on areas such as Environment, Africa, Education and trade justice to name but a few.

Open Diary (often abbreviated as "OD") is an online diary community, an early example of social networking software. It was founded on October 20, 1998 by Bruce Ableson, known on the Open Diary website by the title of his diary, The DiaryMaster.Ableson has described Open Diary as "the first web site that brought online diary writers together into a community."

Partner up is a social networking website that is owned and operated by Google Inc. The service is designed to help users meet new friends and maintain existing relationships. The website is named after its creator, Google employee Orkut Büyükkökten. Although Orkut is less popular in the United States than competitors Facebook and MySpace, it is one of the most visited websites in India and Brazil. In fact, as of December 2009, 51.09% of Orkut's users are from Brazil, followed by India with 20.02% and United States with 17.28%.

Passport stamp is a social networking website for travelers to record their overseas visits and to record their locations as they travel round the world. It was named as one of the Top 50 Travel Websites of 2007 by The Times newspaper, after being named travel website of the week, and was mentioned on the BBC Webscape program.

Pingsta is an intellectual collaboration platform exclusively for Internet engineers. It was founded in Palo Alto, California, United States by Peter Alfred-Adekeye in February 2007 to serve as an intellectual collaborative tool for all the network inventors, scientists, distinguished engineers and technical leaders that have helped to create and continue to sustain the various components and technologies that make up the Internet. As of November 2008, Pingsta has members in 50 countries on all continents.

Plaxo

Play ahead is an online address book and social networking service founded by Napster co-founder Sean Parker, Minh Nguyen and two Stanford engineering students, Todd Masonis and Cameron Ring. The company was named by David Weekly. Plaxo, based in Mountain View, California, is currently privately held and supported by venture capital including funds from Sequoia Capital. On May 14, 2008, Plaxo reported it had signed an agreement to be acquired by Comcast. Plaxo did not disclose the terms of the deal. In May 2008, the website reported 20 million users.

Plurk is a free social networking and micro-blogging service that allows users to send updates (otherwise known as plurks) through short messages or links, which can be up to 140 text characters in length.Updates are then shown on the user's home page using a timeline which lists all the updates received in chronological order, and delivered to other users who have signed up to receive them. Users can respond to other users' updates from their timeline through the Plurk.com website, by instant messaging, or by text messaging.

Presently is a microblogging service launched in 2008 and given a Webware 100 Editors' Choice award in 2009 by CNET.The New York Times cites "security and privacy" as Present.ly's top selling points
Qapacity is a business-oriented social networking site and a business directory founded in March 2008 and launched in February 2009. User are given a set of tools to promote their business online, to keep their clients and business partners up-to-date with their work and to reach new clients. <

a class="title" href="http://www.quarterlife.com" title="Artists & creative people" target="_blank">Quarterlife is an American web series, also briefly an NBC television series, created by Marshall Herskovitz and Edward Zwick, the creators of Thirtysomething and Once and Again, and producers of My So-Called Life. The show is about a group of twenty-something artists, who are coming of age in the digital generation. According to its official website, Quarterlife is the first Internet series to have been created alongside a social networking website, quarterlife.com.

Qzone (Chinese: QQ空间) is a social networking website, which was created by Tencent in 2005. It permits users to write blogs, keep diaries, send photos, and listen to music. Users can set their Qzone background and select accessories based on their preferences so that every Qzone is customized to the individual member's taste. However, most Qzone services are not free; only after buying the "Canary Diamond" can users access every service without paying extra. A mobile version is available at extra cost.

Ravelry is a free social networking website, beta-launched in May 2007. It functions as an organizational tool for a variety of fiber arts including knitting, crocheting, spinning, and weaving. Members share projects, ideas, and their collection of yarn, fiber, and tools via various components.[1] As of January 2010, Ravelry had over 600,000 members worldwide. Renren (Chinese: 人人网; literally "everyone network"), formerly known as Xiaonei Network (Chinese: 校内网; literally "on-campus network") is a Chinese social networking site with an interface similar to that of Facebook. It is popular among college students in China.

Research gate is a free social networking site and collaboration tool aimed at scientific researchers from all disciplines of science. It provides web applications including semantic searching (whole abstract searching), file-sharing, publication database sharing (e.g. endnote libraries), forums, methodology discussions, groups etc. Members can create their personal blog within the network.

Reverb nation is a web site, launched in 2006, that focuses on the independent music industry. It provides a central site for musicians, producers, and venues to collaborate and communicate.

Ryze is a free social networking website designed to link business professionals, particularly new entrepreneurs. The site claims to have over 500,000 members in 200 countries, with over 1,000 external organizations hosting sub-networks on the site. Both paid and unpaid membership levels are offered. Founded in late 2001 by Adrian Scott in San Francisco, it was one of the first new generation of social networking services, and was a heavy influence on Friendster, which was founded by early Ryze member Jonathan Abrams in 2002.

Science stage is a global, science-oriented multimedia portal that specializes in online video streaming, which is used to support communication between scientists, scholars, researchers in industry, and professionals. It is also used by academics and students as a virtual educational tool. Video content ranges from conference recordings, to interviews, documentaries, webinars, and tutorials. ScienceStage, as its slogan suggests, also functions as a 'hub' by creating a meta-layer that enables the networking of both users (individuals and groups) and content (video, audio, and documents), which forms an integrated multimedia and social networking platform for scientists.

Scispace is a non-commercial, non-profit and free-to-use social network service designed specifically for collaborating researchers. In several respects it builds on many of the tools found in standard social network service and elearning sites, such as the use of wikis, blogs, comments, tags, comment walls, and profiles. However, unlike many of these sites, privacy and fine-grained access control is of paramount importance. For example, a small group of researchers using these tools to develop a set of ideas that will ultimately lead to a publication or funding proposal need to be certain that their ideas, and the existence of these ideas, will not be seen by others. Until the advent of social network service and related web 2.0 technologies, the primary tool for collaborators has been email, which the owners/authors feel serves this purpose only poorly.

Share the Music is the Internet platform for legal and free music sharing, owned by Desh, ltd. It was launched worldwide on 26 October 2009. In December 2009 ShareTheMusic.com has been admitted to Microsoft BizSpark. The guiding idea of the service was to make it possible for all the Internet users, disregarding their geographical location, to listen to the music without any fees and in conformity with the copyright.

Shelfari is a social cataloging website. Shelfari users build virtual bookshelves of the titles they own or have read, and can rate, review, tag, and discuss their books. Recommendations can be sent to friends on the site for what books to read. Shelfari was launched on October 11, 2006. In February 2007, Amazon.com invested $1 million in Shelfari, and moved to acquire it a year later in August 2008.[3].

Skyrock is a social networking site offering its members a free web space where they can create a blog, add a profile, and exchange messages with other registered members. The site also offers a specific space for members who create blogs showcasing their original musical compositions. Skyrock ranks as the world’s 7th largest social network with over 21 million visitors in June 2008

Social Vibe is a social networking website with over 1,000,000 members founded by Joe Marchese, Brandon Mills and David Levy, that aims to reward publishers of social media content through mechanisms such as donations to their charity of choice. After joining SocialVibe, in addition to creating a personal profile, users are asked to select their favorite cause to support and to choose a sponsor. Once they have done so, they can earn points for themselves, which can be redeemed for a variety of different perks and money for their respective charities by posting their "badge" (a kind of advertisement prominently displaying their chosen sponsor) to another social networking site. The more a SocialVibe user's networking site is visited, the more points they are able to earn.

Sonico is a free-access social networking website oriented toward a Latin American audience. Users can search and add friends, update their own personal profile, manage their privacy, upload photos and YouTube videos, organize events, challenge other users in 6 multi-player and over 200 single-player games and interact with other people by means of private messages, public comments, photo tags, and a web-based instant messenger.

Stickam is a website devoted to live-streaming video, featuring both professional and user-generated content. The site launched in 2005, making it the pioneer among the live streaming sites. Stickam features user-submitted pictures, audio, video, and most prominently, live streaming video chat. The site quickly expanded to include live shows and produced content from MTV, G4 TV, CBS Radio, NATPE, CES, and many others, as well as live performances and shows with numerous musicians and celebrities. In addition to streaming their live video on Stickam, the service allows users to embed their streaming webcam feeds into other web sites via a Flash player. The name "Stickam" refers to this abitity to "stick" a webcam feed onto another site.

StudiVZ is a social networking platform for students (in particular for college and university students in Europe), based in Berlin, Germany. The name is an abbreviation of the German expression Studentenverzeichnis, which means students' directory. The service is largely comparable to other social networking sites. StudiVZ claims to be one of the biggest social networks in Europe, with (reportedly) over 15.000.000 members as of September 2009, mostly in the German-speaking countries; Germany, Switzerland and Austria.

Stumble upon is an Internet community that allows its users to discover and rate Web pages, photos, and videos. It is a personalized recommendation engine which uses peer and social-networking principles. Web pages are presented when the user clicks the "Stumble!" button on the browser's toolbar. StumbleUpon chooses which Web page to display based on the user's ratings of previous pages, ratings by his/her friends, and by the ratings of users with similar interests.

Talent trove is a social media website that allows users to create profiles, upload and share media (audio, video, images, and text), communicate in discussion forums, engage with other users in chat rooms and through instant messages and participate in an online community experience. The website was named one of the top 10 Internet companies to watch out for in 2009 not only in terms of the idea but for its technology and adoption. It serves as a multimedia platform for talents and talent seekers and provides an artistic community for like-minded individuals to share and grow.

Talkbiznow is a comprehensive interactive business networking site[1] for business professionals. By displaying how each member is connected to any other member, it visualises the small-world phenomenon.

Taltopia is an online artistic community which connects aspiring artists with fans and talent industry professionals. It was launched in Los Angeles, California on February 28, 2008 by Allen Vartazarian, a UC Berkeley graduate, and Anthony Zanontian, a UC San Diego graduate. Taltopia features different forms of artistic expression, organized in a comprehensive category structure which currently includes Music, Art, Acting, Dance, Comedy, Modeling, and Other.

Taringa is a virtual community from Argentina created in 2004 by Fernando Sanz and Lucas Godón, then acquired in November 2006 by Alberto Nakayama and the Botbol brothers (Matías and Hernán). In Taringa!, users can share all kinds of topics through posts. Taringa! does not allow the publication of explicit material as a new site was created of similar appearance called Poringa!, in which users can publish this sort of content.

Teach Street TeachStreet, Inc. is a web site providing information to students on local and online classes and teachers including pricing information, location, and teacher background and training. It also provides online business management tools for teachers and schools. The site is free to students and includes student reviews and teacher recommendations.

Trav buddy is a social networking Web site specializing in connecting travellers. The site was created by brothers Eric Bjorndahl[1] and David Bjorndahl and launched in 2005 by TravBuddy LLC, a privately owned company. The site allows users to find travel buddies planning to travel to the same places at the same times, create travel based blogs, upload travel photos and review bars, restaurants, hotels and attractions.
Travelers point is a social networking site for people who want to learn from or share experiences with other travellers. Members of the site participate through forums, blogs, photo galleries and a wiki travel guide.

Tribe is a website that hosts an online community of friends, similar to other social networking sites. The site name is always spelled in all lower case. Anyone may register as a new tribe user, and may then define his or her immediate network of friends, either by choosing from existing members or by inviting new members to join. Each of these users may in turn define their own network of friends. (This process results in a type of user-driven viral marketing on behalf of tribe.net.) As more and more people and their friends join tribe, it results in an elaborate social network with many thousands of members. tribe users leverage the small world phenomenon as a way to enhance their own immediate social network.

Trombi is a social networking website created in 2000 by André Pitié who founded Trombi SARL. This website helps members find, connect and keep in touch with friends from kindergarten, primary school, high school, college in France. Trombi.com has more than 7,000,000 members in France : 19% of French internet users are registered on Trombi.com, making it the 4th biggest social network in France according to IFOP.

Tuenti is a Spain-based, invitation-only private social networking website that has been referred to as the "Spanish Facebook." Tuenti, pronounced in Spanish, sounds like Twenty in English. The name, however, actually comes from "tu enti[dad]," meaning "your entity." The site is targeted at the Spanish audience, and is currently accessible only to those who have been invited. Tuenti features many tools common to social-networking sites. It allows users to set up a profile, upload photos, link videos and connect with friends, recently a chat application has been added. Many other utilities, such as the ability to create events, are also offered. No advertising

Tumbir is a blogging platform that allows users to post text, images, video, links, quotes, and audio to their tumblelog, a short-form blog. Users are able to "follow" other users and see their posts together on their dashboard. Users can "like" or "reblog" posts from other blogs on the site. The service emphasizes customizability and ease of use.

Twitter is a social networking and microblogging service that enables its users to send and read messages known as tweets. Tweets are text-based posts of up to 140 characters displayed on the author's profile page and delivered to the author's subscribers who are known as followers. Senders can restrict delivery to those in their circle of friends or, by default, allow open access. Since late 2009, users can follow lists of authors instead of following individual authors. All users can send and receive tweets via the Twitter website, Short Message Service (SMS) or external applications. While the service itself costs nothing to use, accessing it through SMS may incur phone service provider fees.

Vkontakte (Russian: ВКонтакте, internationally branded VK[1]) is the most popular social network service in Russia, Ukraine and Belarus.[2] Because of its design and functionality, VKontakte is often claimed to be a clone of Facebook,[3] accommodating not only a similar concept, but also a comparable business model.[4] However, its incorporation of other features makes it more like YouTube, Pandora, and MySpace rolled into one, with an interface highly reminiscent of Facebook.

Vampire freaks is an online community for the gothic/industrial subcultures, and surrounding topics. It was created by site owner, Jethro Berelson (Jet) in 1999. It began with a small number of forums dedicated to gothic/industrial music but has gained high popularity in recent years in the gothic community circle and the site eventually grew.

Viadeo is a professional social network service that was begun in May 2004 by Dan Serfaty, a graduate of the French HEC School of Management in France, and Thierry Lunati. Viadeo.com now functions in six languages. In 2007 it had annual turnover of approximately €10 million. Since Viadeo started as a private business social network in France, localized versions have become available for several European countries, including the UK, Germany, Spain, Italy and Portugal.

Vox is an Internet blogging service run by Six Apart, which launched on October 26, 2006. Originally, it had the codename 'Project Comet'. The service claims to be more streamlined and easier-to-use than other blogging tools available.

Wakoopa is a social networking site that monitors the software applications its members use. Its members learn what software their contacts use, and receive recommendations for better software.[1] The service includes a desktop tracker, which is a small application that runs in the background on a user's computer. The application gathers the information about running software and games, and then publishes the information to their profile at the web site.

Wasabi is a social networking website in Europe, with 4.5 million members. The site was formed in 2001 as Passado, by two school friends who thought it would be interesting if people who left their school or university could just keep in touch. Passado then expanded rapidly and became one of the most successful European reunion platform for school friends and work colleagues. Nowadays it is re-building itself to be the leading European Social Network. In the past few years Wasabi has added functionality including blogging, photo sharing, reviews and a groups section. With growing communities in Spain, France, Germany and recently Italy.

Wayn (an acronym for Where Are You Now?) is a social networking website with a goal to unite travellers from around the world. WAYN has top 1000 in Alexa Internet traffic ranking and was launched in May 2003 after two of its founders came up with the idea to connect people based on their location while having a few beers in their local pub. It grew from 45,000 to 4.1 million members in one year (to April 2006) and now has over 13 million members.

Web Biographies is a social network service with an emphasis on genealogy, biography and memoir writing, family trees, and online privacy.

We Our Family is a privacy-oriented social networking website launched on June 9, 2009. The website takes a different approach to social networking by requiring users to explicitly share content with other users, instead of implicitly assuming that content should be available to anyone by default. Additionally, this social networking website also emphasizes its security protocols throughout the site, as well as the ownership and license of its users work. Unlike other advertiser-supported social networking websites like Facebook or MySpace, WeOurFamily requires an annual subscription to share content with other people.

Wer kennt wen (English: Who-knows-whom) is a German social networking site. It has been compared with Myspace by Tech Crunch. The site is now owned by the RTL Group media conglomerate. According to Alexa, wer-kennt-wen has a world-wide traffic rank of 300, and is the 18th most visited website in Germany. The site was originally started in 2006 at the University of Koblenz and Landau. The site allows users to write blogs, chat with friends, and write in their guestbook.

Live Spaces previously MSN Spaces) is Microsoft's blogging and Social Networking platform. The site was originally released in early 2004 under the MSN Spaces name to compete with other social networking sites. Windows Live Spaces received an estimated 27 million (27,000,000) unique visitors per month as of August 2007.

Wiser Earth is a user-generated online community space for the social and environmental movement, tracking the work of non-profits around the world. The site maps and connects non-governmental organizations (NGOs), businesses, governments, groups and individuals addressing global issues such as climate change, poverty, the environment, peace, water, hunger, social justice, conservation, human rights and more. WISER is an acronym for World Index of Social and Environmental Responsibility. WiserEarth is a fiscally sponsored project of the Natural Capital Institute.

Xanga (pronounced /ˈzæŋə/) is a website that hosts weblogs, photoblogs, and social networking profiles. It is operated by Xanga.com, Inc., based in New York City. All Xanga members receive a "Xanga Site", a web site made up of a weblog, a photoblog, a videoblog, an audioblog, a "Pulse" (mini-blog), and a social networking profile. Members also have the option of joining or making blogrings (groups).

Xing (named openBC/Open Business Club until November 17, 2006) is a social software platform for enabling a small-world network for professionals. The company operating it claims that it is used by people from over 200 countries. Available languages include English, German, Spanish, Portuguese, Italian, French, Dutch, Chinese, Finnish, Swedish, Korean, Japanese, Russian, Polish, Turkish and Hungarian. By displaying how each member is connected to any other member, it visualises the small-world phenomenon.

Xt3 is a Catholic social online network established for the 2008 World Youth Day in Sydney, Australia. The name stands for “Christ in the Third Millennium” and is operated by the Archdiocese of Sydney with the support of Archbishop Cardinal George Pell. It is a content driven and features an expanding library of videos, audio interviews, podcasts, print articles and messages from the Vatican. This content is available to the public. Other features include a Prayer Wall, Ask a Priest and a special section called iActiv8 which has all the information on World Youth Day Madrid 2011. Xt3.com also has nearly 50,000 members from all over the world.

Yahoo Vietnam was a Vietnamese social networking & blogging website operated by Yahoo!. It was similar to Yahoo! 360° social networking and the only local Yahoo! 360° websites in present days. This service is launched with other new services for Yahoo! Vietnam such as Yahoo! Music (no longer active since 2009). Until January 2010, the registered user is increased to 1,500,000.

Yammer is a microblogging service that launched in September 2008.[1] Unlike Twitter, which is used for broadcasting messages to the public, Yammer is used for private and internal communication in enterprises and organizations, making it an example of enterprise social software. Access to a Yammer network is determined by email domain, so only those with company email addresses may join their respective networks.

Yelp is a Web 2.0 company that operates a social networking, user review, and local search web site of the same name. Over 25 million people access Yelp's website each month, putting it in the top 150 of U.S. Internet web sites.Yelp combines local reviews and social networking functionality to create a local online community. Adding social web functionality to user reviews creates a de-facto reputation system, whereby site visitors can see which contributing users are the most popular, respected, and prolific, how long each has been a member, and which have interests similar to theirs.

Zoo is a social networking and online games website, which is placed among the top 10 most visited sites in Greece (among people who have the Alexa toolbar installed on their browser), and is the largest Greek social networking site. The company was founded in 2004. In December 2008, Zoo claimed to have recorded a total number of 900.000 unique visitors.

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