After finding Riya Photo Search I also found MyHeritage, two sites that use face recognition technology to find people in your pictures.

Riya’s goal is to help you find every photo of yourself on the web through face recognition, they will have a public beta this month.
MyHeritage wants to make it easier for people to discover their heritage through face recognition, they already have a public demo.

I’m very eager to try them out, automatically recognizing and tagging faces on all my pictures would be very interesting. I will report my findings after trying them out.

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