Still in beta but very cool - a website where people make long-term bets. Like "By 2012, the Wall Street Journal and the New York Times will have referred to Russia as "the world leader in software development" or words to that effect."
There's quite a few open, incidentlaly, if you feel like putting up the cash....
Sure, the whole concept is cribbed shamelessly from "Letters From a Nut" and the whole "write stupid letters to corporations" thing that's been done a few times by now, but the execution is rock-solid and also you don't have to buy the book.
