The thing I like about Mindfield is that if you disqualify, you do it in the very beginning of the survey and not after minutes have passed like some other companies. Mindfield recently revised their rules so you are able to cash out with less earnings than before. As always, it is FREE to sign up and you are under no obligation to take every survey you receive.
The other surveys companies already reviewed on this blog are Global Test Market, Survey Savvy, SayNation, American Consumer Opinion, Opinion Outpost , Zoompanel, Ipsos I-Say, HCD Surveys, and university-sponsored sites. Have you signed up for all of them?
