Eyetrax webcam eye tracker from Carnegie Mellon

"Eyetrax is dynamic eye tracking software that uses a simple stationary web camera to detect eye movement. It can be used as a motionless computer interface and is especially useful when working with ALS patients. Additionally, the non-obtrusive nature of the program allows it to work perfectly to discretely generate hotspot maps for marketing purposes". The system is developed by Joseph Fernandez, Skylar Roebuck and Jonathon Smereka and was demonstrated at the Multimedia Computing Demos on May 3rd at Carnegie Mellon.