Riya Image Recognition

Just tried this image search software. Though not very perfect it has acceptable accuracy in recognising faces. It did recognize my face (after training with just single photograph) in most of the snaps. Riya is also a nice place to store photos (better than flickr) as it has seperate uploader which is faster and helps in face recognition among your albums.
Riya will soon launch it's image search for internet as well, so it's bound to develop in future.
Nice stuff. Give it a shot.