This one WILL REALLY happen guys.
Use the same software that the FBI uses for facial recognition, but instead of scanning crowds at superbowls or busy intersections in major cities for terrorists- let the public sector use it for fun on the skinternet!
You upload a picture of your face and the engine searches EVERY photo on the internet and finds your evil twin(s), I was thinking about 5 results of people who's facial configuration matches yours the best.
You would have to incrementally pay along the way.
$3 to find out what STATE your matches live in.
$5 to find out wht city , after that.
$10 to find an email address or street address or whatever...
THE BEST PARTis the name, since you are finding your DOUBLE on line (your doppelganger), it would be-