At the end of the twentieth century, the long predicted convergence of the media, computing and telecommunications into hypermedia is finally happening (1). Once again, capitalism's relentless drive to diversify and intensify the creative powers of human labour is on the verge of qualitatively transforming the way in which we work, play and live together. By integrating different technologies around common protocols, something is being created which is more than the sum of its parts. When the ability to produce and receive unlimited amounts of information in any form is combined with the reach of the global telephone networks, existing forms of work and leisure can be fundamentally transformed. New industries will be born and current stock market favourites will be swept away. At such moments of profound social change, anyone who can offer a simple explanation of what is happening will be listened to with great interest. At this crucial juncture, a loose alliance of writers, hackers, capitalists and artists from the West Coast of the USA have succeeded in defining a heterogeneous orthodoxy for the coming information age : the Californian Ideology.