I got this from the back of my MotherJones:
www.democracymeansyou.com
Not very professional "looking" and a whole lot of satire so that makes it not very serious -- BUT...Definitely some good stuff here, worth the look.
Also, I am seconding Salon.com, this is a very good place to get your news. Thoroughly investigated and reported, they cut through all the crap and lay it out for you. They cover the "real" news that major networks leave alone for lack of "sensationalism". I am a CNN addict, but when I
know there is more to a story I can go to Salon and get "the rest of the story".