I’m subscribed to FactCheck.org’s email subscription list, so I receive their updates when they come up. Mozilla had caught them as spam for some reason (I wish the filter would tell me which words triggered this, but I guess the point of Bayesian filtering is to keep the details out of sight). I have just caught up with them. Lots of good stuff, and they certainly do seem balanced, finding fault with statements from Kerry and Bush both.
It’s a real shame that politics requires a site like FactCheck, but it’s great that the site is there!