| Social Networking Sites | Description | Website Focus | Registration | Registered Users | Alexa Rank | Date launched |
|---|
| Facebook | General: Videos, Images, Blogs, Apps. | Open to people 13 and older | 1.44 billion | 2 | February, 2004 |
| Twitter | General - Microblogging, Rss, Updates. | Open to all ages | 302 million | 8 | 15 July 2006 |
| Linkedin | Business & professional networking. | Open to people 18 & older | Over 364 million | 14 | May 2003 |
| Qzone.qq | General - Popular in china. | Open to the general public | 645 million | 10 | 2005 |
| Weibo | Social microblogging website in China. Chinese Twitter. | Open | Over 300 million | 15 | 14 August 2009 |
| Tumblr | Microblogging, Social networking service. | Open | Over 202 million | 37 | February 2007 |
| Pinterest | Visual discovery, collection, and storage tool. | Open | Over 90 million | 40 | March 2010 |
| Google+ | Multi-faceted social networking platform. | Open | Over 200+ million | NA | June 2011 |
| VK.com | General, including music upload, listening. Most Popular in Russia. | Open | 300+ million | 27 | 10 October 2006 |
| Instagram | Instagram is a fast, beautiful and fun way to share your life with friends and family. | Open to anyone 13 or older | 150+ million | 33 | October 6, 2010 |
| Flickr | Photography related networking. | Open to people 13 and older. login with Yahoo mail. | 36+ million | 129 | February 10, 2004 |
| OK.ru | Social Media - Most Popular in Russia | Open - No payment needed since August 31, 2010 | 46+ Million | 68 | March 4, 2006 |
| Renren | Social Media site - Popular in China. | Open | 160+ million | 748 | 2005 |
| Douban | Web 2.0, Social network service, Online music, movie and book database. | Open | 48+ million | 133 | March 6, 2005 |
| Deviantart | The world's largest online art gallery and community. | Open to people 13 and older | 26+ million | 165 | August 7, 2000 |
| Meetup | General - Used to plan offline meetings for people interested in various activities. | Open to people 18 and older | 27 million | 394 | June 12, 2002 |
| Myspace.com | Social Media service - music emphasis. | Open to ages 13 and older. | 30+ million | 1,786 | July 2003 |
| Taringa | General. | Open to people 13 and older. | 75+ million | 589 | January 2004 |
| Mixi.jp | Most popular in Japan. | Open | 32+ million | 583 | 25 October 2000 |
| Academia | Social site for academics/researchers. | Open | 36 million | 687 | September 2008 |
| Xing | Professional network service. | Open | 28+ million | 877 | November 2003 |
| Tagged | General. | Open | 105+ million | 837 | October 2004 |
| Soundcloud | users can upload, record, promote, and share their originally-created sounds. | Open | 40+ million | 176 | October 2008 |
| Goodreads | Social cataloging. | Open | 32+ million | 279 | December 2006 |
| Ning | Users create their own social websites and social networks. | Open to people 13 and older | 41 million | 1,484 | October, 2005 |
| Viadeo | Web 2.0 professional social network whose members include business owners, entrepreneurs and managers. | Open | 65 million members worldwide | 1,815 | May 2004 |
| Twoo + Netlog | General - Twoo is the most fun way to meet new people near you. | Open to people 13 and older | 11.9 million active users | 706 | November 18 2001 |
| Foursquare | Mobile social network. | Open | 45 million | 1,205 | March 11, 2009 |
| Cafemom | Social site - Mothers. | Open to moms | 1.2 million | 1,629 | December 2006 |
| Cloob | General | Open | NA | 1,656 | December 21, 2004 |
| SkyrocK | Social site - Popular in french-speaking world. | Open | 28 million | 2,263 | December 17, 2002 |
| Weheartit | Image-based social network for inspiring images. | Open | 36 million | 1,124 | 2008 |
| Hi5.com | General. Popular in Nepal, Thailand, Mongolia, Romania, Central Africa, Latin America. Not Popular in USA, UK, Canada. | Open to people 13 and older. | 80 million | 2,049 | June 27, 2003 |
| Wayn | Travel network. | Open to people 18 and older | 20 million | 7,288 | May 2003 |
| About.me | Social website. | Open | 10 million | 2,523 | October 2009 |
| Etoro | your social investment network. Connect with other traders & investors and copy their trades. | Open | 5+ million | 4,544 | May 2007 |
| Cyworld | General: South Korean social network service. | Open | 30 million | 4,373 | 1999 |
| Care2 | Connect activists. | Open | 21 million | 3,474 | 1998 |
| Plurk | Free social networking and micro-blogging service. | Open | NA | 1,807 | May 12, 2008 |
| Couchsurfing | making connections between travelers and the communities they visit. | Open | 3 million | 3,010 | 2003 |
| Ravelry | Free social site for knitters, crocheters, designers, spinners, weavers and dyers. | Open | 3 million | 2,264 | 2007 |
| Experience project | Life experiences. | Open | NA | 6,878 | April 2007 |
| Draugiem.lv | General. | Invitation only | 3 million | 2,573 | 2004 |
| Classmates | Users find classmates and colleagues from kindergarten, primary school, high school, college, workplaces, and the U.S. military. | Open to people 18 and older | 50 million | 3,910 | 1995 |
| Mouthshut | Social Media, Consumer reviews. | Open | NA | 3,876 | 2000 |
| Yammer | is a private social network that helps employees collaborate across departments, locations, and business apps. | Must have company email | Over 28 million | 2,774 | September 8, 2008 |
| Myheritage | Site for discovering, sharing and preserving family history. | Open | Over 30 million | 4,929 | 2003 |
| Ello.co | General | Invite only while in beta. | Over 1.2+ million | 10,037 | March 2014 |
| Flixster | Social movie site for discovering new movies, learning about movies. | Open to people 13 and older | 70 million | 12,762 | 2007 |
| Busuu | Social network for learning languages. | Open | 15+ million | 13,121 | 16 May 2008 |
| Mylife | - | Open | 55 million | 13,151 | 2002 |
| Wattpad | For readers and authors to interact and e-book sharing | Open | NA | 1,088 | November 2006 |
| DXY.cn | Online community for physicians, health care professionals. Only for china users | Open | 8+ million | 2,356 | 2000 |
| NK.pl | School based social networking website - Popular in Poland. | Open | Over 17 million | 5,152 | 11 November 2006 |
| Kaixin001 | General : Popular in China | Open to the general public | NA | 5,564 | March 2008 |
| Geni | Commercial genealogy | Open | 101 million | 7,415 | June 2006 |
| iTalki | Language learning social network. | Open, global | 1 million | 9,440 | December 2006 |
| Skoob | Collaborative social network for Brazilian readers | Open | 987K | 9,343 | January 2009 |
| Fotki | Digital photo sharing, video sharing and media social network website | Open | NA | 10,117 | 1998 |
| BuzzNet | photo, journal, and video-sharing social media network | Open | 10+ million | 11,878 | 2005 |
| Gaiaonline | Anime and games. Popular in USA, Canada and Europe | Open to people 13 and older | 26 million | 5,470 | February 18, 2003 |
| Spaces.ru | Russian - Social site | Open | NA | 13,054 | 2006 |
| Kiwibox | General | Open to people 13 and older | Over 3 million | 13,456 | 1999 |
| Librarything | Social cataloging web application | Open to people 13 and older | Over 2 million | 16,222 | August 29, 2005 |
| Trombi | French subsidiary of Classmates.com | - | 5+ million | 16,914 | May 2000 |
| Tuenti | Spanish based university and high school social site | Open | 15 million | 18,989 | 2006 |
| Dailystrength | Medical & emotional support community - physical health, mental health | Open | NA | 21,623 | August 3, 2006 |
| Tribe.net | General - social media site | Open | NA | 21,836 | 2003 |
| Plaxo | Aggregator | Open | NA | 23,241 | November 2002 |
| Filmow | Brazil-based collaborative social network | - | NA | 23,786 | April 1, 2009 |
| Mubi | Streaming video/social networking/film criticism | Open | 200K | 26,716 | February 2007 |
| Doximity | Social media service for U.S. physicians. | U.S. physicians only | Over 1.2 million | 27,289 | March 2011 |
| Blackplanet | African-American social networking service for matchmaking | Open | 23+ million | 27,321 | 1 September 1999 |
| Mocospace | Mobile social network | Open to people 14 and older | 4+ million | 27,454 | October 2005 |
| Anobii | Books | Open | NA | 30,432 | 2006 |
| Habbo | Hangout for teens | Open to people 13 and older | 280 million | 31,345 | 2000 |
| Nexopia | Canadian social website | Open to people 13 and older | 2 million | 34,556 | February 2003 |
| Playfire | Social gaming networking | - | - | 34,250 | December 2007 |
| Weeworld | Social Network, Social Game. | Open to ages 10 and older. | Over 20 million | 35,388 | March 20, 2000 |
| Travbuddy | Travel | Open to people 18 and older | Over 1 million | 36,160 | 2005 |
| Stage32 | World's largest social network and educational hub for film, television & theater creatives | - | 350K | 38,121 | February 1, 2012 |
| Bebo | Social media website | Open to people 13 and older | NA | 39,218 | January 2005 |
| Travellers point | Travel | Open | 3 million | 40,245 | 2002 |
| Livemocha | Online language learning community | Open | 5+ million | 40,296 | 24 Sep 2007 |
| Friendster | Social gaming site | Open to people 16 and older | Over 10 million | 45,248 | March 22, 2002 |
| Spot.im | A service for webmasters to add social networking functionality to their websites. | Open | 455K | 45,351 | 2014 |
| Shelfari | Social website for books | Open | NA | 46,139 | October 2006 |
| Gather.com | Article, picture, and video sharing, as well as group discussions | Open | 1 million | 46,427 | 25 February 2005 |
| HR.com | Social site for human resources professionals. | - | Over 243+ | 46,515 | 1999 |
| Studivz.net | Social networking platform for students. | Open | 17+ million | 50,000 | November 2005 |
| Virb | - | Open | NA | 52,712 | 9 March 2007 |
| Zoo.gr | The greek web meeting point | - | 1.4 million | 60,494 | 2004 |
| Athlinks | Athletes | Open | 400K | 65,431 | 2001 |
| Asmallworld | Paid-subscription social website | Invite-only | Over 342K | 65,973 | March 2004 |
| Mewe.com | Private Social Network | NA | NA | 75,802 | May 16th, 2012 |
| Gapyear | Ultimate travel community | - | NA | 97,939 | July 1998 |
| Friends reunited | UK based - media site | Open to people 13 and older | 25.8 million | 99,453 | 1 July 2000 |
| Zooppa | Global social network for creative talent | Open to people 14 and older | 897K | 117,943 | 2007 |
| Exploroo | Travel | - | NA | 151,449 | 12 May 2009 |
| Gamerdna | Social media company for computer and video game players. | Open | 765K | 152,476 | September 21, 2006 |
| Cucumbertown | Social site for cooks & chefs. | - | NA | 170,654 | October 17, 2012 |
| Cozycot | Social networking website for women | - | 765K | 183,564 | 2001 |
| Cross.tv | Christian social networking website | Open | 643K | 197,454 | 2009 |
| iRc-galleria | Finland - social | Open to Finnish speaking people 12 and older | 987K | 198,897 | December 2000 |
| Faces | Adult social site | Open to people 18 and older worldwide | NA | 222,964 | 2011 |
| Diaspora foundation | Distributed social network | Open | Over 1 million | 234,980 | November 2010 |
| Social Networking Sites | Description | Website Focus | Registration | Registered Users | Alexa Rank | Date launched |
|---|
