Bingo on face book can be come a addictive but fun game. They have got it set up where you only can get so many chips a day but by completing sets you get more chips but have to play higher cards that cost more chips. So they have made it a kind of building your caricature type of game which I find additive. I've completed two sets and am about to complete the third within about a year so it isn't easy there is times I go a week without winning.
http://apps.facebook.com/playbingo/invite.php?pop=1
Its a facebook game so you will have to sign up but it is fun
http://apps.facebook.com/playbingo/invite.php?pop=1
Its a facebook game so you will have to sign up but it is fun