New eye-tracking research at the Missouri University of Science and Technology shows it takes about two tenths of a second to form a first impression about a website. First impressions, of course are extremely important since they determine how long a viewer will linger on the site, search around. Typically, a view will spend approximately 3 seconds scanning the overall web page before fixating on a particular section. The entire process is less than 10 seconds!
Important and useful information for marketers and website developers alike. Study can be downloaded here.