Below is a list of sites you can join to complete surveys that either pay you in cash, give you points to cash out for cash or other prizes, etc. As with the "click to earn" sites, I use these all as well and can vouch that they deliver what they promise.

MySurvey: Earn points for completing online surveys and convert them to cash! You also can opt-in to receive snail mail surveys, telephone surveys and do product testing. A majority of the snail mail surveys will have instant cash right in the envelope with the survey! Earn more online points for referring friends and family! Highly recommended!J

NPDOR: Complete surveys and be entered to win cash and/or other prizes.

BrandInstitute: After registering, you will receive email invitations to
surveys. The surveys take approx. 15-30 minutes and sometimes offer compensation from $8.00-$100.00

ACOP: Compensation typically ranges in from $4 to $50, per survey or focus group. Online focus groups generally receive more than $25.

LiveWire: Earn money for surveys! It's that simpleJ

EPoll: Earn points for surveys and cash them in for Gift Certficates and other prizes! Target, McDonald's, movie tickets and many other GC's to choose from. Earn 100 points just for joining. Highly recommended!J