A good book on exactly this topic is Cyberselfish by Paulina Borsook (http://www.cyberselfish.com/). Todd Davies *** email: davies@csli.stanford.edu Symbolic Systems Program *** phone: 1-650-723-4091 Stanford University *** fax: 1-650-723-5666 Stanford, CA, USA 94305-2150 *** web: www.stanford.edu/~davies