HTTPS Everywhere is a Firefox extension produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. It encrypts your communications with a number of major websites.
This document collects a number of reported cases where the anti-circumvention provisions of the DMCA have been invoked not against pirates, but against consumers, scientists, and legitimate competitors.
Mal wieder ein gutes Beispiel von total absurden Patenten
Die EFF listet verschiedene Fälle auf, bei denen der DMCA missbräuchlich angewandt wurde