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ELLEN PEARLMAN taught at Columbia University's Computer Technology and Applications program for over a decade. She has also taught at the Parsons School of Design in their M.A. in Digital Design Program, The New School University's Computing Center, and at the City University of New York's Baruch College Internet Program. Pearlman was also director of research for Basex, Inc., a technology analyst firm specializing in knowledge management, virtual communities, convergence, and Web services.