Moola.
I have 3 invitations to moola, for whoever wants one. (Don't use up an invitation if you don't care either way!) Here is the link:
join moola
It's basically a "play games to win money" sort of website, but you don't have to pay, ever. You can cash out any time. It's invite-only right now. So join if you think you will be playing. =]
EDIT: I now have six invitations. Go do it!! =D