I agree with @ragingloli about wikipedia. I have found that the criticisms leveled against it were valid in the early days of the site when not many people edited it regularly, but there is currently a huge cabal of regular, educated editors who literally spend all day monitoring the recent changes page in order to snipe any trolling or misinformation before it stays up too long. Sure, Wikipedia will almost always have some kind of bias in it, as long as it is written by human beings, but the information is invaluable, and everyone knows an informed citizenry is a happy citizenry.
Oh, and @forestGeek stole my answer, but I’d like to add http://www.opencongress.org/ to the list. It’s a website where you can read all the bills that are floating around out there, from the most mundane, to the most influential, and even the most terrifying.