I just recently came across the CVS advisor program where you can answer surveys for ECB's.
"From time to time, we will be contacting you via email to participate in online surveys. In appreciation of your participation in these surveys we will compensate you with Extra Bucks between the amounts of $2 and $15. "
I just signed up today and can't wait to get my first survey! They say that I should get an average of 4 per year.