Jason Calacanis, CEO of Mahalo, will broadcast "This Week in Start-Ups" live from the event and his guests will be community experts Peter Hirshberg, chairman of The Conversation Group and Michael Jones, COO of MySpace. Results of the first-ever Managing Online Communities survey will be presented by Karen North, Director, USC Annenberg Program on Online Communities. Wednesday, September 23, 2009 -- Managing Online Communities. Digital Family Summit.