David Weinberger links to an article of his at JOHO (the blog) about the recent debates over the accuracy of Wikipedia (it's from December 29th, so I'm a little behind things here). He brings up some interesting points and, I think, has put out a strong response to a lot of the criticism in mainstream media.

"...the mainstream media misunderstood this story because they have a cognitive problem when it comes to anonymity and accountability."