Thanks for the comments unbob. I would have to say that, although in principle I agree with a lot of what Dawkins says, I think his "religion as a virus-like meme" ideas are probably off the mark. The best book I have read about the subject of religion is "How we Believe" by Michael Shermer. In fact, I can highly recommend anything by Shermer. He's an excellent and thoughtful writer, and unlike a lot of polemical writing on both sides of the debate, he's usually got some good hard statistics on his side.
For those of you too lazy to cut and paste, here's a link to the article unbob was talking about in his comment.