consider to be at the heart of today's graduate education. While no one expects the imminent demise of university campuses, the technology is advancing so rapidly that future researchers may organize themselves around global digital networks. Individuals will differ in the extent to which they may rely on these evolving networks. The world's universities and their laboratories and other facilities over the next few decades will be joined by new types of institutions, able to exploit the evolving information technology and sometimes competing with them. (Noam, 1995; Wulf 1995; Lenzer, 1997; O'Donnell, 1998; Duderstadt, 1999).