Here is an update on the confab.yahoo on prediction markets happening this Wed Dec 13 at 5:30pm at Yahoo!’s Sunnyvale headquarters, Building C, Classroom 5.

1. We’ve added Stanford b-school professor Eric Zitzewitz as a speaker
2. We’ll hold an ad-hoc vendor session immediately following the event, tentatively featuring Collective Intellect, HedgeStreet, HSX, Inkling Markets, NewsFutures, and RIMDEX
3. There will be food!
4. We’ll be giving away a limited number of copies of Surowiecki’s book The Wisdom of Crowds
5. We’re planning to webcast the event at two connection speeds: 100k | 300k

Again, the event is free and open to the public. Hope to see you there!