Seeing as if 50% of my blog readership is from New York City (in which owning a car is rare), and another 2% from outside the US (Hola Manu), I don't know how relevant this post will be for everyone... however... I stumbled upon a cool site this morning (it's an Google AdSense partner) and I wanted to share: GasBuddy.
GasBuddy lists updated gas prices and trends by city and state.
As an example, Florida (where about 20% of my blog readership occurs) is the 31st ranked state in terms of cheapest gas at an average of $2.27 per gallon. It appears, though, that South Florida is bringing this average state price up, as Miami is averaging $2.37 per gallon.
Anyway - just thought the site/information was interesting and I wanted to share.