Malene has done a useful service with her 35 types of social networkING SOFTWARE perspective. Not her fault, but I do think it is important to keep social networking software distinct from the pretty different (and older) tradition of social network analysis (and theory), etc. (See the first chapter in Wellman-Berkowitz __Social Structures_ and Linton Freeman's newish book for a history of SNA. Actually, I wish the social networking folks would build better tools that use social network analysis, but so far, there has been little action. Barry Wellman _______________________________________________________________________ S.D. Clark Professor of Sociology, FRSC NetLab Director Centre for Urban & Community Studies University of Toronto 455 Spadina Avenue Toronto Canada M5S 2G8 fax:+1-416-978-7162 wellman at chass.utoronto.ca http://www.chass.utoronto.ca/~wellman For fun -- updating songs, movies and history: http://chass.utoronto.ca/oldnew/cybertimes.php Elvis wouldn't be singing Return to Sender these days _______________________________________________________________________