This website has been making the rounds quite a bit recently, but I wanted to link to it here, not just because of the great way it gets the information across, but also for one of the maps’ sheer aesthetic beauty. I’m a big fan of all things anti-aliased, and I have to say, this map looks pretty nice:

courtesy http://www-personal.umich.edu/~mejn/election/2008/

Also worth looking at, especially if you are in the anti-electoral-college camp, are the maps that scale blue/red counties according to population: