Robert Kraut started his career as a traditional social psychologist, but working in the telecommunications industry for twelve years shifted his focus from disciplines to problems. As a researcher, he has broad interests in the design and social impact of information technologies in small groups, in the home, and in organizations. Kraut conducts research in the five major areas: • Online communities • Everyday use of the Internet • Collaboration in small work groups • Technology and conversation • Computers in organizations His research in a specific area first examines in detail the challenges individuals, groups, and organizations face in performing social tasks. This empirical research can inform the design of new technology to meet some of these challenges. Here he collaborates with computer scientists and engineers. The research comes full circle when they evaluate the usefulness of the new technology. Kraut teaches courses in these topics, including undergraduate, masters, and Ph.D. level courses on online communities, communication in groups and organizations, computer-supported cooperative work, and social perspectives on human-computer interaction. For additional information, please visit: www. kraut.hciresearch.org/.