Here's a new centrist blog, Donklephant, which as the name would indicate merges some Republican and Democrat elements. I once argued that the center was disappearing but there may be sufficient frustration on both the right and the left that some are eager enough to help rebuild it. Today they have an interesting essay on how terror could unite the West, something that is far more difficult than some would think.

Another liberal-to-moderate blog mostly on American politics and culture is The Reaction from Michael Stickings. Some find it is too far to the left, some find it too conservative. You be the judge, I do find that centrist blogs tend to bring a lot of perpsective and common sense to a debate that is too often partisan in nature.