darktone: I watch videos to get from 500-1000 credits a day. Pretty easy to do by pushing the button on your free time. I buy credits to $20 a month. The surveys are a joke- don't waste your time on them.
I agree on watching the videos. But I don't get near that many credits in a day. If I can about 100-150 credits per day from videos, I'm doing good. I think the most I ever got in one day was about 350 credits. Of course, this option isn't available for everyone.
But I disagree on the surveys. While it can be feast or famine with the surveys, I average at least one completed survey a day. And there have been times that I've got as much as 800 credits in a day from the surveys.
By the way, if you're getting that many credits in a day from videos, why is there any need to purchase credits at all?