Basically ClixSense is a PTC Site where you sign up for free and make money by doing the following:
1. Clicking on advertisements and watching them for about 5 to 60 seconds
2. Listening to the radio
3. Completing surveys
4. Completing micro jobs
5. Clicking on the ClixGrid with the potential of winning some cash
6. And a bunch more, but I basically only do the first 5 every morning before starting my day.
ClixSense is the owner of the above image.