Red and Blue: Just Follow the Money
Fascinating map that details by county which political party has gained the majority of campaign countributions from each county. The Red State/Blue State divide is largely in evidence, but there are some surprises (Idaho shows up as contributing more to Democrats than Republicans at this stage of the political season). There are also individual maps you can click to that detail geographically where each Democrat presidential candidate is getting their cash from. This one for Al Sharpton is interesting.