Hey, you probably know about so called "astroturf" sites, that is, sites which pretend to represent honest grassroots citizens, but are fake. Usually, they're run by PR or lobbying gangs paid by suspect politicians or unsavory corporate execs. This includes the swiftboaters, both in the literal or generic sense, who've already started to attack honest politicians.
Turns out, groups like the Center for Media Democracy, Consumer Reports WebWatch, and Sunlight Foundation are starting to do the hard investigative reporting to expose the bad guys. They're already off to a really good start, reporting in a purely nonpartisan manner.
Check out two early reports:
Disclaimer: I'm pretty impressed by Consumers Union and Sunlight Foundation, so I've joined their boards.