Google’s recent blog post describes how they use eye-tracking to improve the usability of the Google search results page, and showed that eye-tracking is a valuable technique for website optimization. The post received a lot of media attention, including mentions in leading blogs like TechCrunch and ReadWriteWeb, all indications that eye-tracking techniques are of high value and of general interest.

Unfortunately, eye-tracking studies are prohibitively expensive, preventing most small and medium sized businesses from conducting their own studies and enjoying the benefits of this research method. Which is why the results of a Carnegie Mellon study titled “What can a mouse cursor tell us? Correlation of eye/mouse movements on web browsing” are so interesting and important.

The study showed that 84% of the times that a region was visited by a mouse cursor, it was also visited by (users’) eye gaze. In addition, 88% of regions that were not gazed by the eye were also not visited by a mouse cursor.

“I wasn’t the least bit surprised when I read the Carnegie Mellon stu