SOPA and PIPA are two examples of recent legislation that is lethal to the internet as we know it. The internet rose up and is on its way to successfully fighting them off, but we need to stay vigilant.
The only way to prevent legislation like this from being passed in the future is to call your Congressmen and tell them. Make it clear that you don’t support SOPA, you don’t support PIPA, and that you won’t support future legislation that damages the stability of the internet.