I have not personally tried this survey company but if you are looking for a survey company this is what I have heard: Mindfield is similar to other opinion panels and surveys. Users are rewarded for their opinion with cash, prizes, and other incentives. Looks like this month they’ve been giving away a lot of iPhones, iPods, and iTouchs! They have a low payout threshold of only $5, so you can get your rewards quickly!
If you do try them out or are currently a member, please let me know what you think!