A guest has a dining experience and then tweets about it. A server tweets or blogs about a particular guest that visited your restaurant. Who owns that information? Does the server have a right to discuss anything that occurs in the restaurant that you the proprietor are responsible for? Does a guest have a right to expect privacy within the confines of your establishment? Do we need to actively restrict employees with confidentiality agreements. Do we need to have a guest sign a confidentiality agreement?
Transparency in a wired world is a area of the law that is certainly in development. Stay tuned!