Daily Kos is among the largest political blogs in the world. It has well over 200,000 registered users and, whether anyone likes it or not, has some influence within American politics. In the 2006 midterm, for example, they raised money for 17 netroots candidates, winning eight races: Jim Webb (VA-Sen), Jon Tester (MT-Sen), Tim Walz (MN-01), Joe Sestak (PA-07), Ciro Rodriguez (TX-23), Patrick Murphy (PA-08), Jerry McNerney (CA-11), and Paul Hodes (NH-02).
Daily Kos helped drive Joe Lieberman from the Democratic party and the mainstream media promotes Daily Kos through Keith Olbermann. It also, of course, helped give Barack Obama the Presidency - an effort that I helped in, myself.