The politics of your zip code. Go ahead, just type your zip code here and find out who in the area gave money to which presidential candidates--and how much they gave! (Via Metafilter--where they've got some good comments.) You can get the street addresses and names of all the donors, so if you're thinking of buying a house, you can find, say, the place in Madison where you'll be snuggled up next to the kind of people who gave $200 to Kucinich, or alternatively, the folks who forked over the whole $2000 to Bush. Students can find out who their professors gave money to (and how much). Hmmpf! A new excuse not to give ...