A site called "It's Pat" that is a hotornot.com knock-off where you vote whether an uploaded picture is a picture of a man or a woman. Leaderboard is photos closest to 50-50%.
haha I did something like this for a friend of mine a few years back. Primed it with about 50 pics of him, 50 randoms. Allowed people to upload their own images which were then included. Passed the URL on to all friends. Hilarity ensued.
