I subscribe to-and love- Free Technology for Teachers. Today they turned me on to the site Week in Rap, by Flocabulary. The week's news, no matter how depressing, gets a little lift. This won't replace Jon Stewart, but it is certainly a welcome companion.
Side Note: Flocabulary creates resources that help teach concepts through hip hop. How many ways can we make 8? Click here to rap and find out!