Google image labeler
Google has a new game (and a new beta service...) It is called Google image labeler and what it does is to let you tag manually images they have found on the internet. So while playing this game, their database is getting richer and richer. :-)
You play with at random somebody else online. If your tag and the other persons tag match, you get points.
As you can imagine I labeled the pictures above (courtesy from my friends from the naked rugby league) with the tags, beach, sea, tattoo and.. uh.. ;-)