Digital Photography Review -  Find out anything about any digital camera.

Whats your IQ?  I got 135 on this one.  Takes about 15 min to finish.  You may want to sign up for the site first.

Tons of Great Tests  No really the whole sight is fun, and a easy way to kill time.  Especially when your in another country at 2:45AM babysitting equipment that has a 99.9% uptime.  (I also recommend starting a website)