It will be at the Washington Convention Center in Washington DC on the weekend of September 24th-25th. Included are exhibits, lectures, panels, a film festival, music, fair trade pavilion, organic dining and beer garden and more. Some interesting events include:
Dennis Kucinich
It all starts With the Department of Peace (Keynotes, main stage, Sunday 11am)
Chris Flavin:
Envisioning a Post-Petroleum Energy Economy (Lecture, Sunday 3pm)
Code Pink: A Panel DiscussionStop the Next War Now (Sunday 4pm)
Details
here. They will also be in San Fransisco November 5th-6th.
I understand the first day of this event conflicts with the day DUers are attending the protest, but some might be interested in checking this out on Sunday. Also those who are not attending the protest might want to see this.