not a textbook, but I do like Wellman & Haythornthwaite, Internet in Everyday Life -- not for online-only community, but for how online and offline get integrated. Re textbook,see Jenny Preece's. Barry _____________________________________________________________________ Barry Wellman Professor of Sociology NetLab Director wellman at chass.utoronto.ca http://www.chass.utoronto.ca/~wellman Centre for Urban & Community Studies University of Toronto 455 Spadina Avenue Toronto Canada M5S 2G8 fax:+1-416-978-7162 To network is to live; to live is to network _____________________________________________________________________