Research staff member at IBM's T. J. Watson Research Center in New York, to whence he telecommutes from his home in Minneapolis. He specializes in studying and designing systems for supporting network-mediated interaction in groups and organizations. His approach to systems design is shaped by work in sociology, rhetoric, architecture and urban design. Before IBM he spent nine years in Apple's research division, five years as a ‘user interface czar’ in a small startup, and five years doing graduate work in cognitive psychology. Further information, and many of his publications, can be found at his web site: http://www.pliant.org/personal/Tom_Erickson.