I'll definitely want to keep an eye on this site and the author's methodology. Looks very interesting. (Albeit a bit dated. Interest in the site appears to have peaked a couple years ago.)
From the site:
"Wikirage is a tool that tracks the entries in the Wikipedia that are getting the most edits over different periods of time. I started this project to see if I could find an alternative to traffic data for judging Internet trends. I was very impressed with the results and how they mirror what is going on in popular culture."