Razib Khan has a fine blog affiliated with Discover Magazine, that is worth your time to read on a regular basis. A recent post, for example, thoughtfully deals with the cultural context and meaning as saying that you are an atheist. Often, the blog focuses on thoughtful analysis of the latest population genetics discoveries, and the signal to noise ratio in the comments is good.
Razib is a straight shooter, civil, sensitive to the touchy issues that genetics can raise and smart. Also, he likes cats, something that is generally a sign of good character.