Lindsay Beyerstein writes a piece for Salon.com about why she refused to blog for Edwards, and wraps up with an interesting assessment of the utility of left-wing bloggers:
In my opinion, though, the real lesson of the Webb campaign is how effective bloggers can be when they're outside the campaign. I think the candidates who benefit the most from the netroots are the ones who can inspire bloggers to do their work for free. They create unpaid, unofficial surrogates. Webb is a netroots success story because his team captured the imagination of independent bloggers and online activists.
It was always clear that the netroots adopted Webb, not the other way around. His people figured out a way to make the relationship work. Throughout the race, besides hiring Feld and Chernila, his staffers also diligently cultivated relationships with bloggers outside the campaign. The Webb team started taking the pulse of the larger blogosphere before the Democratic primary -- and their candidate's primary victory was due, in part, to intense Internet support.
Some candidates effortlessly attract blogger buzz, but love at first sight is rare. Usually it takes a little more work to build relationships. Campaigns "work" bloggers more or less the same way they work the mainstream press. They send out e-mails and press releases. They make phone calls. They make their candidate available for interviews. They invite bloggers to campaign events. They network in person at Drinking Liberally or the YearlyKos convention. Webb's team was especially good at maintaining lines of communication with bloggers, and benefited from the netroots' infatuation with their candidate.