My Survey is where I get the most money from. They seem to send the most, and they send you products to try too, which saves money. I got a 1 1/2 month supply of dishwasher tablets from them, a good supply of, um, "women things" as DH likes to call them, and a huge pack of diapers for Caitlin in the not too far past.
I don't have a link as I don't have a survey from them today, but Synovate/Marie Brighton is my 2nd biggest moneymaker. Synovate is their home page, but I have a hard time finding where to go if I don't have a survey in my box.
Vocalpoint is #3. They seem to not be sending nearly as many as they have in the past, though.
Somehow, through one of those companies, Safeway contacted me to be part of their Momconnection group. THEY have to ask YOU, though, you can't just sign up with them. In a month and a half, I've gotten $40 in Amazon.com gift codes.
Do you do My Points? There's some surveys on there, but I do some online shopping, and make points off that, and usually get enough points for about 3 $50 gift cards to my own personal mothership. I buy things I would buy anyway, from online merchants I would use, so might as well get points.
There's one other survey place I started with and seem to get a fair amount of points. I have to remember it, though.