We're now starting the second keynote session with Sara Kiesler from Carnegie Mellon University. Her topic is the question of 'given ubiquity, what is the real world?' She starts out by discussing the topic of ubiquity in itself - this could mean ubiquity of access across society (and then access to what types of services - dial-up, broadband; email, Web, etc.?) or personal ubiquity (use of the Net in virtually aspects of everyday life, for a wide variety of purposes; in fact, people now equate 'computer use' with 'Internet use'). Sara's hypothesis, then, is that the online world is so intertwined with the real world that we cannot any more study the Internet as a unique entity.