According to this site -
http://autos.msn.com/everyday/gassta...?zip=&src=Netx the average is $2.30/gallon. Now, I look at MY zipcode and they have 3 gas stations lower than $2.21 and a dozen at and over and claim the average is $2.20, so I think their average is a bit low. I think Yahoo's all wet.
This site also says the lowest in the nation is $1.73. If that's the case, then for Yahoo's article to be right, there must be a TON of $1.73 gas stations around.
I've been using MSN's site for a long while and they've always been right on (with prices) so I believe them.