I have gotten more than one email about this and have heard that it is somewhat spread across the internet. It is a good idea. I have been on it for about a month now.
No way americans and american businesses can boycott gasoline altogether, but we can easily boycott the largest oil company. Exxon Mobil supposedly is the largest by quite a bit. If they suffer, then they will need to lower prices and others will be forced to follow suit or be uncompetitive.
Not my idea but it really is the only way, our senators and representatives have no interest in doing little more than giving the problem lip service.