This law school text is an in-depth survey of the emerging legal framework for the protection of intellectual property on the Internet, with particular emphasis on issues that have not yet become well known, such as protection of databases, and trademark-based disputes over domain names. It is designed to be used either in a traditional survey course in intellectual property, or as the basis for a course or seminar focusing on intellectual property in cyberspace. The authors assume familiarity with first-year legal courses, but no further specialized knowledge is required.