Although the porn industry is notoriously shadowy and highly competitive, it's still a business like any other in that its success hinges on copyright protection. Some of the biggest companies in the porn industry are uniting to stave off their greatest threat to survival: the proliferation of peer-to-peer sites that allow illegal downloads. The companies have already begun suing individuals for illegally downloading copyrighted materials and are moving against the the legions of Youtube-like porn sites that have sprung up recently that allow viewers to access thousands of porn films and clips for free. The result has been a massive drop-off in paid subscriptions to legit sites that own the material. While some of this material is posted by amateur exhibitionists, there are also thousands of clips that are derived from copyrighted videos. The companies will have a pretty difficult job controlling these sites as they can reappear rather quickly. Click here for more