http://likebetter.com/
check it out, basically it tries to figure out who you are w/what pictures you pick.
VERY accurate with me, it figured out;
-i'm a guy
-i'm 20 something
-prefer boxers
-work best at night
-work best with music playing
-am right handed
-i work best one on one compared to a group
the only thing it got wrong was;
-you are introverted (i'm extroverted by a mile)
there's another game with it too,
http://likebetter.com/doyouknow/deepbluevibes basically allows you to try and pick what pictures you think the person preferred. etc.