If you're a fan of Google's zeitgeists, or whenever Wikipediapublishes their list of the most popular pages, you'll get a kick out of Wikirage. The service scours the latest edits on Wikipedia to find out which items are getting the most editing attention. It then publishes the list in a top 100, which you can browse by hour, day, week, and month. Each link goes straight to the Wikipedia page in question, and offers a pretty fascinating look at what's going on inside the service.
[found on Digg]