This week at Cafe, Eric Boehlert joins us for a discussion about his book Bloggers on the Bus: How the Internet Changed Politics and the Press. Boehlert, a senior fellow at Media Matters for America, looks back at the 2008 presidential campaign and how key players in the liberal blogosphere shaped important events.

Joining the discussion are Jay Rosen, professor of journalism at NYU and author of PressThink; Amanda Marcotte, Pandagon blogger and blogmaster for John Edwards' 2008 presidential campaign for a time; Greg Mitchell, editor of Editor & Publisher and author of Why Obama Won; Duncan Black, also known as Atrios of Eschaton Blog; Armando Llorens, who posts as Big Tent Democrat at Talk Left; and Ari Melber, correspondent for The Nation and columnist for Politico.