Google has recently been promoting a very worthy cause: Free the Airwaves. With the move to digital TV this February, there will be really valuable spectrum available, and it's important that ordinary people get to use it, not just big companies.
If you've ever used a laptop with wireless internet access, you've used free spectrum. The spectrum coming up for grabs is much more useful than the spectrum used for wifi.
Please consider signing the petition and calling your congressperson to support this measure. The FCC will be voting on it November 4th, and the NAB is fighting hard to keep it from happening.
This is a cause that will make a really significant difference in your own life: it'll affect the kinds of gadgets you use in a few years, how easily they connect to each other, and whether you have to pay for the "privilege".