In Law and Social Norms, Eric Posner offers an original and important theory of the emergence of norms. According to Posner, norms are collections of signals. He develops his signaling account in a variety of contexts, including criminal law, family law, political participation, and racial discrimination. This article extends Posner\u27s theory to cyberspace, a domain of social organization not touched on in Posner\u27s book. In particular, I will test Posner\u27s theory by examining how well it explains the emergence of Web site privacy norms. Part One will examine signaling theory. Part Two will explore privacy norms in some detail, and Part Three then will apply signaling theory to privacy norms. The conclusion states that these new norms are not best understood as collections of signals
