He received his PhD in computer science from MIT in 1989 and taught at the University of Chicago and the University of Sussex before arriving at UCSD in 1991. He is the author of Computation and Human Experience (Cambridge: Cambridge University Press, 1997) and the coeditor of Computational Theories of Interaction and Agency (with Stanley J. Rosenschein; Cambridge: MIT Press, 1996), Technology and Privacy: The New Landscape (with Marc Rotenberg; Cambridge: MIT Press, 1997), and Reinventing Technology, Rediscovering Community: Critical Studies in Computing as a Social Practice (with Douglas Schuler; Ablex, 1997). He also edits the Red Rock Eater News Service, an Internet mailing list that distributes useful information on the social and political aspects of networking and computing to 4000 people in 60 countries. His home page is located at http://communication.ucsd.edu/pagre