MeshForum ("Connecting Networks") is coming up, May 7th through 9th in San Francisco, and looks to be great: speakers include Robert Scoble, Anil Dash, Heather Gold, Christopher Allen and, from WorldChanging, Jon Lebkowsky (speaking about political networks and managing large scale social networks) and Jamais Cascio. If you're in the Bay Area those three days, that's the place to be.