Wikirage can help you keep tabs on US pop culture through its daily posting of the top 100 edits on Wikipedia. Focusing on which posts receive the most editing attention, it is quite interesting to see which issues intrigue the most people -- some surprising, some not (ie, the top 10 posting related to Britney Spear's fifth studio album is not surprising; Houston, Texas being the No. 1 posting is). So while there are some random postings receiving attention, overall the edits match the stories in current events. You can browse by hour, day, week, and month. Each link highlights the edit in question (you are not linked directly to Wikipedia), as well as showing you the charts and graphs monitoring activity on the wiki post.