Interesting paper on blogs but … it categorizes Virginia Postrel’s blog as being on the left and Marginal Revolution and EconLog as being in the center (?). I think this provides more data for my argument that the left-right spectrum has limited utility at best. Hard-core libertarians like David Henderson in the center of the American political spectrum!? Awesome. A market-lover like Virginia Postrel in the same category as socialist progressive Matt Yglesias! Huh?
HT: Volokh
PILEUS 
And Volokh itself is on the right. 😉