On the occasion of the twentieth anniversary of the Fordham Intellectual Property Law & Policy Conference, its organizer, Professor Hugh Hansen, planned a session on “U.S. Copyright Law: Where Has It Been? Where Is It Going?” and asked me to look back over the twenty years since the conference’s inception in order to identify the most important development in copyright during that period. Of course, the obvious answer is “the Internet,” or “digital media,” whose effect on copyright law has been pervasive. I want to propose a less obvious response, but first acknowledge that digital media and communications have presented significant challenges to every one of the exclusive rights that § 106 of the Copyright Act grants to authors. Part I wil...