Many of these tools are free or reasonably cheap.
- A Paper and Pencil
- Concept Feedback
- Chalkmark
- Clickheat
- ClickTale
- Clixpy
- Crazy Egg
- Ethnio
- Feng-GUI
- Five Second Test
- Feedback Army
- Loop11
- Mechanical Turk
- Morae
- Open Hallway
- Silverback
- Simple Mouse Tracking
- Usabilla
- UserFly
- UserTesting.com
- UserVue
- Google Analytics
- Google Website Optimizer
- Website Grader