The market has already been proven by usertesting.com. Small to medium tech companies are very interested in testing like this, particularly for SEM pages. Pr

The market has already been proven by usertesting.com. Small to medium tech companies are very interested in testing like this, particularly for SEM pages. Proper A/B testing, even with Google's Website Optimizer, can be pretty daunting. Having a heat map (and in this case, one that is very simple to generate) to see where people are looking allows you to understand the performance of your page very easily.