Face Tracker in JavaScript
visagetechnologies.com
visagetechnologies.com
"License warning
You don't have a valid license for visage|SDK FaceTrack. Please contact your sales representative. (Error code 0x00000010)"
The closest thing I've seen to this is DITTO (http://ditto.com) where they create a virtual head using your webcam onto which you can then try various glasses and see yourself at different angles. But that requires an additional "head scanning" step using flash, which isn't needed here. The range of motion is also limited.
I hope this type of technology will be standard in clothing/accessory sites in a few years - I can see it working for ear rings, watches, ties, t-shirts, etc.
It seems pretty bound to symmetry though, if I blink just one eye, it seemed to think I blinked both, and if I raised one eyebrow it seemed sticky and raised the other even if it went down.
Also, it didn't detect things like frowning, or slanted brows, but still, very neat.