Check out Opinion Outpost. It is a survey site, where the rewards are actually pretty decent. I have made over $150 this year from this website. The best part is that you can either request a Citi Card, an Amazon code, or a check be mailed to you.
I buy stuff all the time on Amazon, so I always use the codes for that. The surveys are actually interesting. Last night I took a survey on a new dating television show and it was super funny! Anyways, you won't make a TON of money doing any surveys. But for my 20 mins last night, I made $4.