The Internet offers unprecedented possibilities for human creativity, global communication, and access to information. Yet digital technology also invites new forms of information enclosure. In the last decade, mass media companies have developed methods of control that undermine the public’s traditional rights to use, share, and reproduce information and ideas. These technologies, combined with dramatic consolidation in the media industry and new laws that increase its control over intellectual products, threaten to undermine the political discourse, free speech, and creativity needed for a healthy democracy. In response to the crisis, librarians, cyber-activists, and other public interest advocates have sought ways to expand access to th...