I have done very well with
www.mypoints.com . I also do well with Hallmark Cards, CVS, and Kroger. Kroger gives 10cents off each gallon of gas up to a full tank when you spend $100. They give 3 cents off just for using the card at the pump. With gas prices as crazy as they are, every little bit helps.
Has anyone else done well with some other website online? I would like to find another one to follow.