I have a love-hate relationship with SurveySpot. I have made more money with them than with any other survey site. What's the "hate" side of the relationship? Most of the surveys I do start out as "sweepstakes only". A lot of them end in a product test, an invitation to a high-paying online forum survey, or an invitation to join an online community where I get paid in giftcards for nominal weekly participation.
I get surveys from SurveySpot every day and sometimes complete them if I have time. In case you have a lot of time on your hands, you'll have to learn to ignore some of their survey invites. They won't tell you which ones might lead to product tests or online community or forum invitations, you just roll the dice and take a chance. For me, it pays off a lot of the time. I cash out each month with SurveySpot (you need $5 to request a check) and have always been paid timely with no issues.
It's FREE to sign up and you are under no obligation to complete surveys. After each survey you are given the option to see if other surveys are available. Keep clicking - they usually are. I have gotten some of my best rewards and coolest product tests when I just kept on clicking!
Some of the other surveys companies already reviewed on this blog are Lightspeed, Greenfield, Global Test Market, Survey Savvy, SayNation, Valued Opinions, American Consumer Opinion, Opinion Outpost , Zoompanel, Ipsos I-Say, HCD Surveys, and university-sponsored sites. Have you signed up for all of them?