Rockstar
Developed by The Perception Laboratory and the University of St Andrews the Face Transformer is hours on fun.

Upload a picture to the site and you can change its race, age, or even transform yourself into a manga character or an ape-man.

The picture is of Britney as an ape to give you an idea of the effects.

Implications - If you've always wondered what you might look like a few years from now, with a different skin color or as a different species, this is the website for you. The effects may not be the most stunning, but for an online tool available for everyone, it's pretty rad and entertaining.