"GasBuddy.com can help you find cheap gas prices in your city. It is a network of [over] 180 gas price information web sites that helps you find low gasoline prices." Search for prices by ZIP code." Information is member-supplied. Registration (free) required to post gas prices on most of the gas sites or to create a fuel log for tracking your expenses. Includes tips for conserving gas, links to news stories, and other resources.