Spot on post by Pho on the Kos story. This part stands out for me:

When we spoke to John Green the discussion of course rolled around to blogging. He noted that one failure of blogging thus far is its inability to forge connections across ideological divides. I would go a step farther and say that blogs tend to accentuate those divides. The DKos/MyDD axis embodies the ethic to a distressing degree. Kos’s TNR rant is an example of the overheated rhetoric that gets bounced around there – disagree with a consensus progressive position and you aren’t merely wrong, you are a soulless right-winger.