I also have to share this site that I came across a couple of weeks ago from someone else (I can't remember so I can't give credit-- sorry!) I think I'm going to start using it with my 7th and 8th graders. It seems like a good hook for technology class or library. I haven't decided which, but either way it will be a good opening for discussing current events which they love to do.
The Week in Rap 12-12-08 from Week in Rap on Vimeo.