traces the rise during the Bush years of new media stars: the news-saturated satire of , , and ; the polemical assaults of Michael Moore and Air America; and the instant-messaging politics of MoveOn, Daily Kos, and the netroots. With the exception of Air America, all of these new media outlets have found commercial success—marking, says Hamm, a new era in liberal politics. Does this new media matter? In 2004, both Michael Moore and MoveOn became major players; more recently, the influence of the netroots has sparked upheaval and debate within the Democratic Party. examines this phenomenon in depth, and the reshaping of both the style and the substance of progressivism.