Users on Flickr can label every photo with limitless tags. For instance, this picture
could be tagged as Marines, medal, eagle, globe, anchor, military, etc. The game shows you nine pictures, one at a time, and you try to guess the tag they have in common. You are pitted against a couple dozen fellow time-wastrs and the quickr you guess the right tag, the more points you get. The competitive side of me got stuck playing for 20 minutes or so until I won three rounds in a row. It's really fun--strangely addictive--and you get to see a lot of neat photos. Which is how I stumbled upon this Flickr album--if you like photography, go there and select "view slide show in new window" for a beautiful little show. It's a contest so all the entries are everyone's self-selected best shots.