This seminar will explore the ways in which the Internet has challenged both the theory and the law of intellectual property. Rather than broadly surveying the landscape, we will closely examine a cluster of topics that have especially challenged courts, legislatures, and theorists. Particular topics will be determined prior to the start of class, but might include: copyright law's treatment of intermediaries (such as YouTube, file sharing services, and online service providers); the obligations of auction sites and other online services to police trademark infringement by their users; the scope of fair use protection for user-generated content; and patent protection for Internet-related technologies and business methods. Grades will be based on a combination of written exercises (required each week) and oral presentations (required once for each student). Student participation is required, and will be taken into account in the grade for the course. In lieu of the short papers, it is possible to write a paper that satisfies the Upper-class Writing Requirement. PREREQUISITE: All students must have completed a core Intellectual Property course (Intellectual Property, Patent Law, Copyright Law, or Trademark Law). **A student who fails to attend the initial meeting of a seminar (designated by an (S) in the title), or to obtain permission to be absent from either the instructor or the Registrar, may be administratively dropped from the seminar. Students who are on a wait list for a seminar are required to attend the first seminar meeting to be considered for enrollment.