Another way to give back
For most of us, cycling is not just a hobby, but a lifestyle. We use our bikes in our daily activities, whether it be shopping, running errands, or just going out to dinner with friends. People For Bikes are, in their own words, "an initiative of Bikes Belong, a national group of bicycle suppliers and retailers working to put more people on bicycles more often."
Their ambitious goal is to unite all who ride or have to do with bikes to encourage safer streets, better cycling infrastructure and laws that protect cyclists instead of discriminate against them. They've set up a site where you can pledge your support (and money, if you like, but you don't have to) to the cause:
http://www.peopleforbikes.org/page/s/pledge
It's worth a look...and a pledge.