A little late getting into this discussion. But my favorite so far is OneOpinion. I think it’s mentioned here. Survey Junkie cool. MyPoints is okay. Ipso, not so much. I did make 300 points today in about 6 hours and every single survey except one I was disqualified for. I was disqualified for the two pointers as well as the higher pointed ones. I’ve never had that problem. Yes you get disqualified, but not everyone out of 30 or so. One of them I actually made to the 98% and was disqualified. I think they didn’t like the fact I was female, except that was answered at the beginning.
IOCS is a not-for-profit research organization that conducts studies and experiments on shopping-related behavior – things like how we, as consumers, evaluate products, how we make the buying decisions, etc. Although the focus is mostly on shopping related behavior, some of their experiments and studies include broader areas of marketing, psychology, and economics.