Click heat maps and click visualizers can be a very useful addition to your web analytics. Click heat maps do more than tell you which links people are clicking, they also tell you where else on your site people are clicking and where they are not clicking. You can use this information to improve your website usability.
What click heat map tools have you used? What do you value the most about click heat maps? Share your experiences with click heat map tools here. Or if you like you can review your favorite click heat map tool.