Another short one from me. If you've got 5 mintues spare - go and play with Google Image Labeller..

http://images.google.com/imagelabeler/

It's addictive so beware. You get automatically paired with another player. You both get shown the same picture which you both try to label. If you both come up with the same term then you score a point and move on to the next picture. You have 90 seconds in which to score as many points as possible. Google shows you terms which are "off limits".

My record is 10 :)