I thought this was an interesting finding using Google Trends, a tool from Google that allows users to analyze the trends for search volume for any term. What the graphs above show is that Google search requests for the terms " bicycle commuting" have surged this year beginning in the second quarter, up between 15 and 20 times compared to the baseline average search traffic for the terms (represented as 1.0) since 2004. At the same time, searches for " hummer" peaked in 2005 and have decreased steadily ever since. In short, this provides another clue that high gas prices are causing people to take a closer look at bicycling for transportation.
Note this is a relative comparison: searches for "bicycle commuting" this year compared to such search volume for those terms in past years. An absolute comparison shows that more people still search for "hummer" than "bicycle commuting", but at a slower level when compared to previous years. And maybe they're looking for ways to sell or dispose of their Hummer.