I also like eBates and Greenpoints for shopping. One of our local grocery stores has a Greenpoints/Shoppers reward card, so doing a little online shopping through Greenpoints helps me get to a $25 LLBean GC a little faster.
In addition to the ones mentioned, I also do Greenfield Online. They are pretty good about sending surveys but there is always something on their site you may qualify for. I just cashed out last week for $22. I received my check in less than a week. I also do the GoZing. They haven't had much lately. I did about four or five surveys and got $20 for them. They automatically deposit into my Paypal account when they do the payouts. Also, a really good one for kids is kidzeyes.com (I think that's how it is spelled). I have enrolled my two oldest daughters and one already has $15 and the other has $35. I am getting ready to cash out and that will be their spending money at WDW. These are just my suggestions.