The Digital Millennium Copyright Act or DMCA is pretty well known and abused in Second Life™. In RL it is also commonly known and abused. The law should be over turned and I expect it would be if it ever made it to the Supreme Court. The law makes people prove their innocence, which is upside down in America and most free market economies. The the reason the law continues to stand is the it favors politicians, big business, and the wealthy. Individuals and small business can’t afford to fight at the Supreme Court level.

The WordPress organization is fighting the censorship that can be imposed by abuse of DMCA. They wrote about it here: Striking Back Against Censorship. Others are in the fight too. One of those is a company named Automattic. They gained fame when fighting Janet Jackson’s take down demand. (Reference)