Socratic Forum is a pretty good paid survey site. They send out about 2 -3 surveys a month, and they pay cash for every survey, usually from $2 – $10. Once you have $5 in your account you can request payout which can be cash (check), amazon gift certificate or charity.
Their surveys are generally interesting and easy and fun to do, and I qualify about half of them. I usually request cash payment, and receive the check 2 – 3 months after request.