The Surveys button on the top of the page, will take you to ClixSenseResearch.com
ClixSense Research is a survey company that ClixSense have a deal with to provide members the ability to earn additional income by completing their surveys. You do not have to participate in ClixSense Research, it's totally optional.
The income that you make with ClixSense Research is separate from what you earn on ClixSense. ClixSenseResearch.com are responsible for paying your earnings from their surveys.