With the advent of cyberspace, the means of and the opportunities for anonymous communications have changed radically. The new environment has fuelled dialogue on the beliefs and values behind anonymous communication. Debates rage about how, by whom, and to what extent cyberspace anonymity should be controlled. This book aims to provide an insight into and an understanding of the concept of anonymity. The contributors discuss technological developments and subsequently analyse anonymity from various angles. Areas covered include US and European court-sanctioned procedures to reveal identity, privacy interests, the right to anonymous speech, implications of the Council of Europe"s Cybercrime Convention, European data protection and data retention provisions, consumer protection and the private law implications of anonymous transactions by means of the Internet.