Dale McGowan's The Meming of Life, The Friendly Atheist, and Greta Christina are my favs although I've been exploring more of Freethought Blogs and Skepchick Blog Network.

I am a huge fan of The Meming of Life, Dale McGowan's blog; it's on hiatus now, but worth reading the old posts if you are new to humanist/parenting. Greta Christina and TheFriendly Atheist are favorites, too.