Sen. John McCain's campaign is urging supporters to spam blogs and forums with official talking points, according to the Washington Post. If you do a good job, you can even win prizes. "That, in essence, is the McCain campaign's pitch to supporters to join its new online effort, one that combines the features of 'AstroTurf' campaigning with the sort of customer-loyalty programs offered by airlines, hotel chains, restaurants and the occasional daily newspaper." "People who sign up for McCain's program receive reward points each time they place a favorable comment on one of the listed Web sites (subject to verification...