ThoughtSort
ThoughtSort is part of a prototype framework which aims to bring eye tracking to the web, enabling developers to create more dynamic experiences through the wider awareness of the users physiological responses. The framework provides a Javascript library from which developers can create site specific plug-ins to customise the behavior based on the users gaze path.
The ThoughSort demo application enables Google Image Searching to be controlled by your gaze path. As you visually scan the content ThoughtSort automatically gathers and injects similar content based on your natural gaze path and the images you dwell upon. This creates a dynamic search experience where the content becomes focused around your interests over time.
More Info: Project Website