Manuel A. Pérez-Quiñones is an associate professor in the Department of Computer Science at Virginia Polytechnic Institute and State University. His research interests include human-computer interaction, personal information management, multiplatform user interfaces, user interface software, and educational uses of computers. Pérez-Quiñones received a DSc in computer science from The George Washington University. He is a member of the ACM, the IEEE Computer Society, and Computer Professionals for Social Responsibility. Contact him at perez@vt.edu.