This text has two aims: to identify the legal issues that face individuals, corporations, system administrators and online service providers as they move online; and to provide information critical to system administrators and system operators regarding the legal issues, risks and so on. It includes case studies of famous or important cases and issues, such as the Clipper encryption affair, and cases involving copyright on networks. Each chapter covers a different area of law or legal procedure as it relates to the online world, such as privacy, property rights and legal principles.