U.S. Gas Prices Features http://www.tinbu.com/gas/

• Daily gas station price monitoring on over 140,000 stations in U.S.
  
• Available in English or Spanish.
• Searchable by zip code or city name.
• Shows top 10 highest and lowest prices in every location.
  
• Built in mapping feature showing location of every station listed.
  
• Interactive map of U.S. showing current high and low for each state
  when moused over.
• Site visitors can set up customized alerts to notify them of desired
  gas price changes in their selected location.
• Current crude oil price with percentage change
• U.S. average gas price.
• U.S. lowest gas price with location.
• U.S. highest gas price with location.
• Historical fuel price information by state.
• Gas saving tips for consumers.
• MPG analysis for 20,000+ vehicles from 1985 to today.
• Personal annual fuel cost estimate for people based on their driving
  habits and current vehicle.
• Tell a friend feature.