| Name | Description/Focus | Date launched |
| 43 Things | Goal setting and achievement | 1st January 2005 |
| Academia.edu | Social networking site for academics/researchers | Sep-08 |
| Advogato | Free and open source software developers | 1999 |
| Advogato | Free and open source software developers | 1999 |
| aNobii | Books | 2006 |
| AsianAvenue | A social network for the Asian American community | 1997 |
| aSmallWorld | European jet set and social elite world-wide | Mar-04 |
| Athlinks | Running, Swimming | 2001 |
| Audimated.com | Independent music | 2010 |
| Badoo | General, Meet new people & dating, Popular in Europe and Latin America | 2006 |
| Bebo | General | Jul-05 |
| BIGADDA | Indian Social Networking Site | Aug-07 |
| Biip.no | Norwegian community | 1-Jun-05 |
| BlackPlanet | Black Americans | 1-Sep-99 |
| Blauk | Anyone who wants to tell something about a stranger or acquaintance. | 2010 |
| Blogster | Blogging community | 24-Nov-05 |
| Bolt.com | General | 1996 |
| Busuu | Language learning community (headquartered in Madrid, Spain) | 16-May-08 |
| Buzznet | Music and pop-culture | 2005 |
| CafeMom | Mothers | Dec-06 |
| Care2 | Green living and social activism | 1998 |
| CaringBridge | Not for profit providing free websites that connect family and friends during a serious health event, care and recovery.[37] | |
| Cellufun | Mobile social game network[41] | 2007 |
| Classmates.com | School, college, work and the military | 1995 |
| Cloob | General. Popular in Iran | 2004 |
| CouchSurfing | Worldwide network for making connections between travelers and the communities they visit. | 2003 |
| CozyCot | East Asian and Southeast Asian women | 2001 |
| Cross.tv | Faith Based social network for Christian believers from around the world | 2008 |
| Crunchyroll | Anime and forums. | 2006 |
| Cyworld | General. Popular in South Korea. | 1999 |
| DailyBooth | Photo-blogging site where users upload a photo every day | 13-Feb-09 |
| DailyStrength | Medical & emotional support community – Physical health, Mental health, Support groups | 4-Nov-07 |
| delicious | Social bookmarking allowing users to locate and save websites that match their own interests | Sep-03 |
| deviantART | Art community | 7-Aug-00 |
| Diaspora* | Decentralized, privacy aware, general (open source) | November, 2010 |
| Disaboom | People with disabilities (Amputee, cerebral palsy, MS, and other disabilities) | |
| Dol2day | Politic community, Social network, Internet radio (German-speaking countries) | |
| DontStayIn | Clubbing (primarily UK) | |
| douban | Chinese Web 2.0 website providing user review and recommendation services for movies, books, and music. | 2005 |
| Draugiem.lv | General (primarily LV, LT, HU) | |
| DXY.cn | Chinese online community for physicians, health care professionals, pharmacies and facilities | 2000[75] |
| Elftown | Community and wiki around Fantasy and sci-fi. | |
| Elixio | Business executives jet set and global elite. | Jul-07 |
| Eons.com | For baby boomers and mature internet users age 40 and beyond. | |
| Epernicus | For research scientists | |
| eToro | Social Investing, Finance | May-07 |
| Experience Project | Life experiences | |
| Exploroo | Travel Social Networking. | |
| General: Photos, Videos, Blogs, Apps. | Feb-04 | |
| Faceparty | General. Popular UK. | |
| Faces.com | Adult Social Network, Mainly UK & USA | 2011 |
| Fetlife | People who are into BDSM | Jan-08 |
| FilmAffinity | Movies and TV Series | 2002 |
| Filmow | Movies and TV Series | 2009 |
| FledgeWing | Entrepreneural community targeted towards worldwide university students | |
| Flickr | Photo sharing, commenting, photography related networking, worldwide | Feb-04 |
| Flixster | Movies | 2007 |
| Focus.com | Business to Business, worldwide | 2005 |
| Fotki | Photo sharing, video hosting, photo contests, journals, forums, flexible privacy protection, friend’s feed, audio comments and unlimited custom design integration. | Oct-98 |
| Fotolog | Photoblogging. Popular in South America and Spain | 2002 |
| Foursquare | Location based mobile social network | 2009 |
| Friendica | Distributed, federated, privacy aware, open source, general | |
| Friends Reunited | UK based. School, college, work, sport and streets | Jul-00 |
| Friendster | General. Popular in Southeast Asia. No longer popular in the western world | 2002 |
| Frühstückstreff | General | Jul-01 |
| Fubar | dating, an “online bar” for 18 and older | Oct-07 |
| Fuelmyblog | Blogging community | July, 2007 |
| FullCircle | Geosocial networking and location-based services portal for mobile devices | Apr-09 |
| Gaia Online | Anime and games. Popular in USA, Canada and Europe. Moderately popular around Asia. | |
| GamerDNA | Computer and video games | 21-Sep-06 |
| Gapyear.com | Travel social network | July, 1998 |
| Gather.com | Article, picture, and video sharing, as well as group discussions | |
| Gays.com | Social network for LGBT community, Guide for LGBT bars, restaurants, clubs, shopping | 16-May-08 |
| Geni.com | Families, genealogy | 16-Jan-07 |
| GetGlue | Social network for entertainment | 28-Oct-08 |
| Gogoyoko | Fair play in Music – Social networking site for musicians and music lovers | |
| Goodreads | Library cataloging, book lovers | Dec-06 |
| Goodwizz | Social network with matchmaking and personality games to find new contacts. Global, based in France. | Oct-10 |
| Google+ | General | 28-Jun-11 |
| GovLoop | For people in and around government | |
| Grono.net | Poland | |
| Habbo | General for teens. Over 31 communities worldwide. Chat room and user profiles. | Aug-00 |
| hi5 | General. Popular in Nepal, Mongolia, Thailand, Romania, Jamaica, Central Africa, Portugal and Latin America. Not very popular in the USA. | 2003 |
| Hospitality Club | Hospitality | |
| Hotlist | Geo-Social Aggregator rooted in the concept of knowing where users’ friends are, were, and will be. | |
| HR.com | Social networking site for Human Resources professionals | 1999 |
| Hub Culture | Global influencers focused on worth creation | Nov-02 |
| Hyves | General, mostly popular in the Netherlands. | Sep-04 |
| Ibibo | Talent based social networking site that allows to promote one’s self and also discover new talent. Most popular in India. | |
| Identi.ca | Twitter-like service popular with hackers and software freedom advocates. | |
| Indaba Music | Online collaboration for musicians, remix contests, and networking. | |
| IRC-Galleria | Finland | |
| italki.com | Language learning social network. 100+ languages. | |
| Itsmy | Mobile community worldwide, blogging, friends, personal TV-shows | |
| iWiW | Hungary | 14-Apr-02 |
| Jaiku | General. Microblogging. Owned by Google | Feb-06 |
| Jiepang | Location based mobile social network. In Chinese language | 2010 |
| Kaixin001 | General. In Simplified Chinese; caters for mainland China users | |
| Kiwibox | General. | 1999 |
| Lafango | Talent-Focused media sharing site | |
| LAGbook | African-based Social Networking Site. Popular in Germany, Denmark, France, China, Hong Kong, Pakistan,Turkey, United Kingdom, United States, Indonesia, Bangladesh, Malaysia, Philippines, Canada, India, Romania,Mexico and especially Nigeria.[180] | 17th April 2010 |
| LaiBhaari | Marathi social networking | 2010 |
| Last.fm | Music | 2002 |
| LibraryThing | Book lovers | 29-Aug-05 |
| Lifeknot | Shared interests, hobbies | |
| Business and professional networking | May-03 | |
| LinkExpats | Social networking website for expatriates. 100+ countries. | |
| Listography | Lists. Autobiography | |
| LiveJournal | Blogging. Popular in Russia and among the Russian-speaking diaspora abroad. | 15-Apr-99 |
| Livemocha | Online language learning | |
| Makeoutclub | General | 9-Aug-99 |
| MEETin | General | |
| Meettheboss | Business and Finance community, worldwide. | |
| Meetup (website) | General. Used to plan offline meetings for people interested in various activities | |
| MillatFacebook | General, Created in Response to Facebook [201] | May-10 |
| mixi | Japan | 25-Oct-00 |
| MocoSpace | mobile community, worldwide | |
| MOG | Music | |
| MouthShut.com | Social Network, social media, consumer reviews | |
| Mubi | Auteur cinema | |
| My Opera | Blogging, mobile blogging, photo sharing, connecting with friends, Opera Link and Opera Unite. Global | |
| MyHeritage | family-oriented social network service | |
| MyLife | Locating friends and family, keeping in touch (formerly Reunion.com) | |
| Myspace | General | Aug-03 |
| Nasza-klasa.pl | School, college and friends. Popular in Poland | |
| Netlog | General. Popular in Europe, Turkey, the Arab World and Canada’s Québec province. Formerly known as Facebox and Redbox.[221] | |
| Nexopia | Canada | |
| NGO Post | Non-Profit news sharing and networking, mainly in India | |
| Ning | Users create their own social websites and social networks | 2005 (Networks 2007) |
| Odnoklassniki | Connect with old classmates. Popular in Russia and former Soviet republics | |
| Open Diary | First online blogging community, founded in 1998 | 1998 |
| Orkut | General. Owned by Google Inc. Popular in India and Brazil.[234] | 22-Jan-04 |
| OUTeverywhere | Gay/LGBTQ Community | |
| Partyflock | Dutch virtual community for people interested in house music and other electronic dance music | 10-Nov-01 |
| Passportstamp | Travel | |
| PatientsLikeMe | Online community for patients with life-changing illnesses to find other patients like them, share their data with others, and learn more about their condition to improve their outcome. | 2006 |
| Pingsta | Collaborative platform for the world’s Internetwork Experts | |
| Online pinboard for organizing and sharing things you love | 2011 | |
| Plaxo | Aggregator | |
| Playfire | Computer and video games | |
| Playlist.com | General, Music | |
| Plurk | Micro-blogging, RSS, updates. Very popular in Taiwan | |
| PureVolume | Connecting indie music bands and listeners, through music sharing and social networking | 2003 |
| Qapacity | A a business-oriented social networking site and a business directory | |
| Quechup | General, friendship, dating | 2007 |
| Qzone | General. In Simplified Chinese; caters for mainland China users | |
| Raptr | Video games | |
| Ravelry | Knitting and crochet | |
| Renren | Significant site in China. Was known as 校内 (Xiaonei) until August 2009. | |
| ReverbNation.com | Social network for musician and bands | |
| Ryze | Business | |
| ScienceStage | Science-oriented multimedia platform and network for scientists | |
| ShareTheMusic | Music Community. Sharing and listening to music for free and legally | |
| Shelfari | Books | 11-Oct-06 |
| Sina Weibo | Social microblogging site in Mainland China. | 14-Aug-09 |
| Skoob | Collaborative social network for Brazilian readers | 2009 |
| Skyrock | Social Network in French-speaking world | |
| SocialVibe | Social Network for Charity | |
| Sonico.com | General. Popular in Latin America and Spanish and Portuguese speaking regions. | |
| SoundCloud | Repository of original music pieces and networking. | |
| Stickam | Live video streaming and chat. | |
| Students Circle Network | A Social Network connecting students, teachers and institutions to course resources, study groups and learning spaces. | Dec-10 |
| StudiVZ | University students, mostly in the German-speaking countries. School students and those out of education sign up via its partner sites schülerVZ and meinVZ. | |
| StumbleUpon | Stumble through websites that match users’ selected interests | |
| Tagged | General. | |
| Talkbiznow | Business networking | |
| Taltopia | Online artistic community | |
| Taringa! | General (primarily Argentina) | |
| TeachStreet | Education / Learning / Teaching – More than 400 subjects | |
| TermWiki | Learning / Languages / Translation – 1.2m terms in more than 1300 subjects | May-10 |
| The Sphere | A Private Online Social Luxury Network with Exclusive Personalized Services | Dec-08 |
| TravBuddy.com | Travel | 2005 |
| Travellerspoint | Travel | 2002 |
| tribe.net | General | |
| Trombi.com | French subsidiary of Classmates.com | |
| Tuenti | Spanish-based university and High School social network. | |
| General. Micro-blogging, RSS, updates | 15-Jul-06 | |
| Vampirefreaks.com | Gothic and industrial subculture | 1999 |
| Viadeo | Global Social Networking and Campus Networking available in English, French, German, Spanish, Italian and Portuguese | |
| Virb | Social network that focuses heavily on artists, including musicians and photographers | 2007 |
| Vkontakte | Social Network for Russian-speaking world including former Soviet republics. | Sep-06 |
| Vox | Blogging | |
| Wakoopa | For computer fans that want to discover new software and games | |
| Wattpad | For readers and authors to interact & e-book sharing | |
| WAYN | Travel and lifestyle | May-03 |
| WeeWorld | Teenagers – 10 to 17 | |
| Wellwer | Community without borders, where sharing is everything. | Sep-11 |
| WeOurFamily | General with emphasis on privacy and security | |
| Wepolls.com | Social polling network | |
| Wer-kennt-wen | General | |
| weRead | Books | Jun-07 |
| WiserEarth | Online community space for the social justice and environmental movement[326] | |
| Wooxie | Blogging and micro-blogging | |
| WriteAPrisoner.com | Site networking inmates, friends, family | Sep-00 |
| Xanga | Blogs and “metro” areas | Unknown |
| Business (primarily Europe (Germany, Austria, Switzerland)) | ||
| Xt3 | Catholic social networking, created after World Youth Day 2008 | |
| Yammer | Social networking for office colleagues | 2008 |
| Yelp, Inc. | Local Business Review and Talk | |
| Zoo.gr | Greek Web Meeting point | 2004 |
| Zooppa | Online Community for Creative Talent (host of brand sponsored advertising contests) |
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