For a long time, I Was thinking when is
Google face search going to come, where you can upload a photo and Google finds matching photo's of the same person.
Today i saw the first glimpse of what Google WILL do soon with the face search.
Picasa web, the google's video upload location has introduced what is called a face tagging.
It finds faces from your photos (AUTOMATICALLY) and then bring you the closest match, and then ask's YOU to tag it, It will offer you the closest match of people that IT THINKS are the matches, and you just have to HELP IT to be perfected.
I think not very far away is the google's face search which will allow us to find and others to find US in billions of photos around the world in flickr, picasa, facebook etc.
So we can now be found doing MANY THINGS which may have been taken by OTHER's camera's and we did not realized that we are being watched.
Here is the video
http://www.youtube.com/watch?v=teeGF-w5Cpw 
Be careful out there, and be safe
