PineCone Research is the main survey site that I head to when a survey pops up in my inbox. I love seeing the new products and best of all I get paid and not with points that take a while to accumulate but real money that goes into my paypal account (can set it to go via a check) which is paid very fast. You get $3 per survey and there's always a survey in my inbox every few weeks or even weekly. So I'm not innundated everyday with surveys wondering whether I made it through and its a nice pace.
PineCone Research are looking for select candidates so sign up here if you are Latino.
If you are not Latino and want to try another survey site then head to Inbox Dollars. Its super easy to rack up points!