At pumpandsave.com you will find lots of information about gas credit cards.
As a matter of fact their aim is to provide people with accurate and useful info on gas credit cards so that they can save money. They feature detailed info on many of the current cash back gas credit cards. They are constantly updating the info, so you will always have fresh information. On the main page of the web site there are diverse links, such as: general gas credit cards, business gas credit cards, and student gas credit cards. If you want to know how to save money by driving smart, check out this site. There you will also see student gas cards, business gas cards, and general gas cards. They also give you tips and advices in order to drive sensibly; speeding and rapid acceleration, for instance, waste lots of gas unnecessarily. There are many charts containing reviews on each gas credit card with their cash back, annual fees and whether you need credit or not. 
