Nathan J. Muller is an independent consultant in Sterling, Virginia, specializing in advanced technology marketing, research, and education. He has 27 years of industry experience and holds an M.A. in Social & Organizational Behavior from George Washington University. He is the author of 15 books, including Desktop Encyclopedia of the Internet (Artech House, 1998) and over 1,500 published articles. He serves on the editorial board for the International Journal of Network Management.