I was just reading in the paper today that there is a Facebook app (promoting Coke Zero) that will find your double. People upload their photos and then the system uses some facial-recognition program to find another photo that looks most like you. There are some issues about privacy rights, so think before you accept the app (I haven't done it myself; not sure that I want to discover another me; as it was, I was dismayed to learn that there is another person using my handle "canmark" on blogger) and some people have complained that it matched them with a person of the opposite sex.

Coke Zero facial profiler
