Pharyngula is a science blog by PZ Myers, and it is these days pre-occupied with three topics: ID (creationism) vs. Evolution, Atheism, and the war against science as waged by the religious right.
He also has a thing for cephalopods. I don't get it either, but the pictures he posts of octopi (octopusses? octopods?) and squids are usually awesome. Occasionally, they're weird. Usually awesome though.