The ESRI User Conference 2009 held in San Diego July 13-17 is already in full swing with pre-conference technical sessions. On Monday afternoon, June 13, the plenary session will be available on the UC website. http://www.esri.com/events/uc/about/about.html for those who are unable to attend the event.
Additionally, the Q&A with Jack Dangermond addresses a lot of questions that readers might have about the upcoming ArcGIS 9.4 release and much more. http://events.esri.com/uc/QandA/index.cfm?ConferenceID=2A8E2713-1422-2418-7F20BB7C186B5B83
This year, social networking sites are also offered as ways to interact while at the conference.