just some anecdotal evidence from my world. Since I began bike commuting to work over 3 years ago, it has caught on big time at my office. We're only a small office of 7 people, but 5 of the 7 of us are now part-time bike commuters, including my boss! Now, I'm the only hardcore, ride every day commuter, but the fact that others are at least into it on part-time basis is a step in the right direction. Every time a person chooses a bike instead of a car, it's a small victory for good over evil.