He Links Me, He Links Me Not

Do political blogs stay in their own ideological cocoons, or seek to engage the opposition? Do they limit their cross-spectrum linking to straw-man gotchas, or gen-u-ine debates? If you detest the word "blogs," is this still interesting if you substitute the word "people"? Some of these questions are addressed in this interesting, if small-looking, new study. My initial beef would be classifying people across a single political axis….