appointments as director of the Community Systems Laboratory, assistant professor in the department of management information systems and assistant scientist in the department of molecular and cell biology. He also previously worked for Bell Laboratories. Research: Biological data bases, electronic communities, collaboration technology, information retrieval, communications networks. He is working on the development of a nationwide electronic library for a community of scientists in the Humane Genome Project. Teaching: design of digital libraries. Education: BA (mathematics), Rice University; MS (artificial intelligence), Massachusetts Institute of Technology; MS (computer science), Carnegie-Mellon University; PhD (computer science), University of Arizona.