You gotta like Phil Plait. He makes no apologies about being an atheist. He's honest about it, clear about it, and doesn't squirm on his position. On the other hand, unlike some other well-known atheist bloggers, he's able to recognize that people who are religious are capable of being rational, reasonable, thinking people.
Here is a post of his where he expresses this. And, by the way, I really like the video he's embedded, and I agree with it fully. Creationism is bad science-- well, it's not science at all, but it's in conflict with science. That much is bloody obvious. But it's also really clear to me that creationism is bad religion, that it's bad for Christianity, for all of the reasons described by the video Phil embeds. Check it out.