This is cool. It is an exercise in photo recognition and culture .. how would the flickr community tag the images. So what are the advocacy application of this kind of game?
Link: fastr - a flickr game.
Fastr is a game that uses flickr images. It loads ten images that all share a common tag, one by one, and you guess what the tag is. When you guess right, the tag will turn blue. Then you can watch the pictures until the next set begins. The faster you guess, the more points you get. The points are reset every five minutes. Don't forget to enter a player name. Please email questions and comments. The correct answer doubles as a link to the flickr page with all the photos.