A new study of blog readers finds a depressing amount of polarization:
Left wingers read left wing blogs, right wingers read right wing blogs, and very few people read both left wing and right wing blogs. Those few people who read both left wing and right wing blogs are considerably more likely to be left wing themselves; interpret this as you like. Furthermore, blog readers are politically very polarized. They tend to clump around either the strong liberal’ or the strong conservative’ pole; there aren’t many blog readers in the center.
I take the ideological diversity of Dish readers as a source of pride. Maybe that's because, these days, I don't fit easily into either "right" or "left".