Arts Time’s A Wastin’
A friend of mine turned me on to this game called “fastr, a flickr game,” in which a collection of images tagged with the same title on the public scrapbook flickr appear, one by one, and you have to guess what they have in common. It’s usually the object in the picture that is the most obvious (gum, for a girl blowing a huge bubble), but you also have to contend with artiness and things that are just plain wrong (a turtle isn’t a fish!).
It didn’t totally work on my Safari browser—my points kept jumping erratically between zero and my actual total—but it’s très fun.