Some time ago, I argued that you could see Wikipedia as "the new town hall." Wikipedia entries aren’t stable encyclopedia entries, even if they look like it; they are active, constantly morphing sites of public discussion about how to understand something.
Others have made this point repeatedly, and probably Yochai Benkler has put the frame around the argument most authoritatively, in his Wealth of Networks.
Now, take a look at the Sarah Palin entry on Wikipedia. Thanks to an analysis by Dan Cohen, the brilliant director of George Mason University’s Center for History and New Media, he shows 500 entries within 24 hours, generating 80 points of discussion among Wikipedians. It has pictures to prove it, too.