Diane Alter

Search engine and internet giant Google debuted "Find My Face".

The new tool designed for its Google+ users is Google's first step into the growing field of social facial recognition.

The "Find My Face" tool exists as a tag for its Google+ social network.

The tool scans users' and their friends photos for recognizable faces, and then suggests nametags for the faces by matching them with users' profile photos and other tagged photos on Google's social network site Google+.

Google has privacy as its main concern in the the new launch.

"Find My Face" is unlike Facebook in that it prompts users to first opt into the service before atomically suggesting to their friend that they be tagged in photos. Google also requires the subject of a suggested tag to approve it before it goes public.

Tagging is the digital equivalent of writing names on the back of of photo.