œMEHacKeR™

Advogato
Free and open source software developers
Amie Street
Music
ANobii
Books
aSmallWorld
European jet set and social elite
Athlinks
Running, Swimming
Avatars United
Online games.
Badoo
General, Popular in Europe
Bebo
General.
Bigadda
Indian Social Networking Site.
BigTent
organization and communication portal for groups
Biip
Norwegian Community.
BlackPlanet
African-Americans
Blogster
Blogging service that lets users "add friends" or establish business connections to their profiles.
Broadcaster.com
Video sharing and webcam chat
Buzznet
Music and pop-culture
CafeMom
Mothers
Cake Financial
Investing
Care2
Green living and social activism
Classmates.com
School, college, work and the military
Cloob
General. Popular in Iran.

College Tonight
College students.
CouchSurfing
Worldwide network for making connections between travelers and the local communities they visit.
DailyStrength
Medical & emotional support community - Physical health, Mental health, Support groups
DeviantART
Art community
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)
Draugiem.lv
General (primarily LV, LT, HU)
Elftown
Community and wiki around Fantasy and sci-fi.
Epernicus
For research scientists
Eons.com
For baby boomers
Experience Project
Life experiences
Exploroo
Travel Social Networking.
Facebook
General.
Faceparty
General. Popular UK.
Faces.com
British teens
Fetlife
People who are into BDSM
Filmaffinity
Movies and TV Series
FledgeWing
Entrepreneural community targeted towards worldwide university students.
Flixster
Movies
Flickr
Photo sharing, commenting, photography related networking, worldwide
Fotolog
Photoblogging. Popular in South America and Spain.
Friends Reunited
UK based. School, college, work, sport and streets
Friendster
General. Popular in Southeast Asia. No longer popular in the western world.
Frühstückstreff
General
Fubar
dating, an "online bar" for 18 and older
Gaia Online
Anime and games
GamerDNA
Computer and video games
Gather.com
Article, picture, and video sharing, as well as group discussions
Geni.com
Families, genealogy
Gogoyoko
Fair play in Music - Social networking site for musicians and music lovers
Goodreads
Library cataloging, book lovers
Gossipreport.com
Anonymous gossip
Grono.net
Poland
Habbo
General for teens. Over 31 communities worldwide. Chat Room and user profiles.
hi5
General. Popular in India,Portugal, Mongolia, Thailand, Romania, Jamaica, Central Africa and Latin America. Not popular in the USA.
Hospitality Club
Hospitality
Hyves
General, Most popular in the Netherlands.
ibibo
Talent based social networking site that allows to promote one's self and also discover new talent. Most popular in India.
imeem
Music, Video, Photos, Blogs
IRC-Galleria
Finland
italki.com
Language learning social network. 100+ languages.
InterNations
International community
itsmy
Mobile community worldwide, blogging, friends, personal TV-shows
iWiW
Hungary
Jaiku
General. Owned by Google.
Jammer Direct
Creative resource website
kaioo
General, nonprofit
Kaixin001
General. In Simplified Chinese; caters for mainland China users
Kiwibox
General. For the users, by the users, a social network that is more than a community.
Last.fm
Music
LibraryThing
Book lovers
lifeknot
Shared interests, hobbies
LinkedIn
General but mainly business
LiveJournal
Blogging
Livemocha
Online language learning - dynamic online courses in 22 languages - world’s largest community of native language speakers.
LunarStorm
Sweden
MEETin
General
Meetup.com
General. Used to plan offline meetings for people interested in various activities.
Meettheboss
Business and Finance community, worldwide.
Mixi
Japan
mobikade
mobile community, UK only
MocoSpace
mobile community, worldwide
MOG
Music
Moozement
Social training log
Mouthshut
Social Network, social media, consumer reviews
Multiply
"Real world" relationships. Popular in Asia. Not popular in the western world.
Muxlim
Muslim portal site
MyAnimeList
Anime themed social community
MyChurch
Christian Churches
MyHeritage
family-oriented social network service
MyLife
Locating friends and family, keeping in touch (formerly Reunion.com)
MyLOL
General. Popular in the United States, Europe and Australia.
My Opera Community
Blogging, mobile blogging, sharing photos, connecting with friends. Global.
MySpace
General. Has lost some popularity in 2007 and 2008, but has started to experience a slight renaissance lately.
myYearbook
General
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.[121]
Nettby
Norwegian Community.
Nexopia
Canada
NGO Post
Non-Profit news sharing and networking, mainly in India
Ning
Users create their own social websites and social networks
Odnoklassniki
General. Popular in Russia and former Soviet republics
OkCupid
Social networking and dating
OneClimate
Not for Profit Social networking and Climate Change
OneWorldTV
Not for Profit Video sharing and social networking aimed at people interested in social issues, development, environment, etc.
Open Diary
First online blogging community, founded in 1998.
Orkut
Owned by Google. Popular in Brazil and India.[134]
OUTeverywhere
Gay/LGBTQ Community
PartnerUp
Social networking site for entrepreneurs and small business owners
Passportstamp
Travel
Pingsta
Collaborative platform for the world's Internetwork Experts
Plaxo
Aggregator
Playahead
Swedish, Danish,Norwegian teenagers
Playboy U
Online college community
Plurk
Micro-blogging, RSS, updates
Present.ly
Enterprise social networking and micro-blogging
Qapacity
A a business-oriented social networking site and a business directory
quarterlife
A social network for artists, filmmakers, musicians, and creative people
Qzone
General. In Simplified Chinese; caters for mainland China users
Ravelry
Knitting and crochet
Renren
Significant site in China. Was known as 校内 (Xiaonei) until August 2009.
ResearchGATE
Social network for scientific researchers
Reverbnation
Social network for musician and bands
Ryze
Business
scispace.net
Collaborative network site for scientists
Shelfari
Books
Skyrock
Social Network in French-speaking world
SocialGO
A social network builder that allows users to build their own online communities
SocialVibe
Social Network for Charity
Sonico.com
General. Popular in Latin America and Spanish and Portuguese speaking regions.
Soundpedia
Music
Stickam
Live video streaming and chat.
StudiVZ
University students, mostly in the German-speaking countries. School students and those out of education sign up via its partner sites SchulerVZ and Meinvz.
Supernova.com
Independent music fans and artists.
Tagged.com
General
Talkbiznow
Business networking
Taltopia
Online artistic community
TravBuddy.com
Travel
Travellerspoint
Travel
tribe.net
General
Trombi.com
French subsidiary of Classmates.com
Tuenti.com
Spanish-based university and High School social network. Very Popular in Spain
Tumblr
General. Micro-blogging, RSS
Twitter
General. Micro-blogging, RSS, updates
V Kontakte
Russian social network.
Vampirefreaks
Gothic and industrial subculture
Viadeo
European Social Networking and Campus Networking in Seven Languages
ViaLynx
Business and social network
Vox
Blogging
Wakoopa
For computer fans that want to discover new software and games.
Wasabi
General
WAYN
Travel and lifestyle
WebBiographies
Genealogy and biography
WeOurFamily
General with emphasis on privacy and security
Windows Live Spaces
Blogging (formerly MSN Spaces)
WiserEarth
Online community space for the social justice and environmental movement[177]
Xanga
Blogs and "metro" areas
XING
Business (primarily Europe (Germany, Austria, Switzerland) and China)
Xt3
Catholic social networking, created after World Youth Day 2008
Yammer
Social networking for office colleagues
Yelp, Inc.
Local Business Review and Talk
Youmeo
UK Social Network (focus on data portability)
Zoo.gr
Greek Web Meeting point
Zovue.com
First to offer online social shopping in real-time with up to four friends