YouTube launched a neat video discovery experiment this afternoon called YouTube Slam. Slam is a little game that allows you to vote between videos in a wide-range of topics, including Comedy, Cute, Music, Bizarre and Dance. The video with the most Slams earns a spot on the leaderboard each week.
YouTube Slam also has a game aspect to it: users will earn more points as they predict crowd favorites. This is a cool time waster that you should check out.