Here is an article entitled The Stupid Party that discusses the radical left in the Democrat Party. James W. Ceaser is professor of politics at the University of Virginia. Here is a sample:
The allies of the wealthy, the bloggers, are the coalition's hit men. Almost all are males in their thirties. The two most prominent, "Markos and Jerome" (Markos Moulitsas Zúniga of the Daily Kos and Jerome Armstrong of MyDD), gained their fame and won their political clout by latching onto Howard Dean's candidacy in 2003 and using the Internet to help create the "Democratic wing of the Democratic party." Their websites not only constantly abuse thought, but show contempt for intellectuals, even while gaining influence among them. The language is often violent and vulgar. The moving spirit of the Daily Kos is one of anger and resentment, which, when not directed at Democrats who dare to stray from the wing line, is directed at the president, the vice president, and the Iraq war.