[Discover] twitTangle http://twittangle.com/ (twitter tool tools mashup)
 [Discover] tweetpeek http://www.tweetpeek.com/ (twitter collaboration community groups)
 [Discover] Grouply http://www.grouply.com/ (google groups yahoo aggregator)
 [Discover] Create your own crowds :: Crowdstatus.com http://crowdstatus.com/Default.aspx (twitter tools crowd group)
 [Discover] TaskBin http://www.taskbin.com/ (gtd collaboration todo productivity)
 [Discover] the Virtual Policy Network http://www.virtualpolicy.net/ (groups policy networks virtualworld)
 [Discover] Simonsays: Lord of the Blogs - corny name but great blog http://simoncollister.typepad.com/simonsays/2008/04/lord-of-the-blo.html (uk community groupblog groups)
 [Discover] Elgg development | Google Groupes http://groups.google.com/group/elgg-development?pli=1 (google elgg groups dev)
 [Discover] Hashtags http://hashtags.org/ (twitter tools tagging hashtags)
 [Discover] TwittBot http://twittbot.com/ (twitter tools twittbot community)
 [Discover] GroupTweet http://grouptweet.com/ (twitter collaboration tools groups)
 [Discover] ZLoop http://zloop.com/ (collaboration groups socialnetwork family)
 [Discover] TwitterLeague http://www1.twitterleague.com/ (mashup statistics groups twitter)
 [Discover] Icebreakers, Warmups, Energerizers, & Deinhibitizers: Activities for getting groups going http://wilderdom.com/games/Icebreakers.html (groups icebreakers games activities)