Hit or Not is a social network game on Facebook. It works like this: You listen to a clip of music from a band, and rate it. You lose or score points by how close your rating is to the average rating of other users. If you like, you can "sign" the band (the fantasy being that you're running a label), and if the band "does well" (rises in ranking) you gain additional game money. You can also "sell" acts you have "bought" for a one-time gain, a "predictions market" effect.
...when you Log In or Register. Gives you the ability to post to the forums and your own blog; to rate games and receive recommendations based on your ratings; and to bookmark games for later reference.