Here are a few companies that will pay you (in either cash or reward points) for taking surveys:
MyPoints: you can earn points for completing surveys and doing lots of other things. You can then redeem your reward points for gift cards for lots of stores and sites, or you can even cash them in for PayPal. See more info about MyPoints here.
Swagbucks: Another site that lets you earn points for a variety of activities, like online searches. Join here. (This is a referral link, so if you join, I’ll get bonus points for referring you.)
Pinecone: They pay you for doing surveys and also for trying out products. Find out more info here.