One very interesting new character (to me at least) on the participatory web scene is Clay Shirky. You may recognize the book title – Here comes everybody. It is one of those books on my desk.
I happen to come across this video. The key question is whether people will be willing to “produce and share” when given the opportunity. How will we allocate the “cognitive surplus” we presently have? Put another way (in the video) will any time presently devoted to watching Desperate Housewives be devoted to Web 2.0 sharing opportunities. Shirky seems to think the answer is “Yes”.