Just as important to the success of the party has been the rise of state-based sites inspired by Kos and Jerome, such as Bluegrassreport in Kentucky and BlueNC in North Carolina. It is no coincidence that these are now the two bluest states in the South -- North Carolina went from being among the reddest in 2004 to among the bluest in 2006 as Jerry Meek employed a Dean-like program. (Meek even has a "100 county" strategy to match the DNC's "50 state" effort.)
Dana gives Dean a lot of credit, though. I tend to think that America's move to the left owes as much to George as it does to Howard, but I'll take it however I can get it. I'd be interested to hear other thoughts about Dana's take on the roles played by Dean on the one hand and the netroots on the other in shaping the Democratic victories of 2006 (and 2008 :) ).
Also from Dana's blog archipelago: "North Carolina: A Model For Southern Democrats".