Along with Dave I would like to bring to your attention AlphaPsy, a blog devoted to the naturalistical paradigm in cultural anthropology, drawing deeply from the well of cognitive science. Posts like this, exploring the cognitive grounding of our understanding of biology, are typical. Also, I want to point to you this post over at alt.muslim titled The Evolution of Monotheism. I am generally skeptical of the existence of a "religious Left" in Islam, but only because I believe they are thin on the ground, not because they are non-existent. This post is witness to the existence of such a thing within the House of Islam.