WhiskerBiscuit writes "The boys at Am I Hot or Not have started a sweepstakes to encourage people to register to vote. According to this blogger's analysis, the contest should encourage disempowered people to register (subject to the constraint that poor people don't have computers). The organizers have cleverly split the prize between a lucky winner and whoever happens to have referred them, providing a selection advantage for viral dispersal of the meme."
http://slashdot.org/article.pl?sid=04/09/07/1812236