[Discover] http--digg.com-login http://digg.com/login (digg social bookmarks technology)
 [Discover] Twitter: What are you doing? http://twitter.com/ (twitter social community blog)
 [Discover] Ning - Create your own Social Websites! http://www.ning.com/ (social collaboration network tools)
 [Discover] LinkedIn http://www.linkedin.com/ (social community career collaboration)
 [Discover] Second Life: Your World. Your Imagination. http://secondlife.com/ (games community social life)
 [Discover] Hyves.nl: always in touch with your friends http://www.hyves.nl/ (social community network friends)
 [Discover] blyberg.net » AADL.org Goes Social http://www.blyberg.net/2007/01/21/aadlorg-goes-social/ (opac drupal community folksonomy)
 [Discover] Friendster - Home http://www.friendster.com/ (search community networking socialnetworking)
 [Discover] Ringo - Photo and Video Sharing Made Easy http://www.ringo.com/ (community network social photo)
 [Discover] Visit www.rememberthemilk.com http://www.rememberthemilk.com/ (tools productivity organization calendar)
 [Discover] The Conversations Network » Recording Spoken-Word Events Worldwide http://www.conversationsnetwork.org/podcorps/ (audio media recording podcorps)
 [Discover] Pipl http://pipl.com/ (search social reference research)
 [Discover] Google http://www.google.it/ig?hl=it (google search personaltoolbarfolder homepage)
 [Discover] loose wire blog: A Directory Of Bookmark Managers http://loosewire.typepad.com/blog/2005/01/a_directory_of__1.html (directory folksonomy tools social)
 [Discover] coRank > Crea tu propia Red Temática http://es.corank.com/ (bookmarks social ranking herramientas)
 [Discover] CBC News In Depth: Technology http://www.cbc.ca/news/background/tech/social-connections.html (culture social networking)
 [Discover] Reuters Second Life http://secondlife.reuters.com/ (metaverse life secondlife community)
 [Discover] CASOS: Home | CASOS http://www.casos.cs.cmu.edu/ (complexity modeling research computing)
 [Discover] iden.tify.us - people helping people identify music http://iden.tify.us/ (music community video audio)

 [Discover] GRUUVE - Connecting Everything Music http://www.gruuve.com/ (music media audio network)
 [Discover] Public Press - Earth http://www.publicpress.org/ (media portland news local)
 [Discover] Spock http://www.spock.com/ (search community social searchengine)
 [Discover] social media software providers for publishers http://www.pluck.com/index.html (media social software community)
 [Discover] 煩悩是道場 - 私が、はてなブックマークを使う理由 http://d.hatena.ne.jp/ululun/20060913/bunkuma060913 (sbm hatena social bookmark)
 [Discover] Firefox Campus Edition http://www.mozilla.com/en-US/add-ons/campus/ (firefox browser research library)