Paul Moody  IBM Research Division, Watson Research Center Cambridge, 1 Rogers Street, Cambridge, MA 02142 (paul_moodyus.ibm.com). Mr. Moody is a Senior Technical Staff Member in the Collaborative User Experience group of IBM Research and is pursuing the research, design, and development of collaborative business applications. He has a background in visual design and in his 25 years of software design, he has designed video games for Atari, help systems for Sun Microsystems, and spreadsheet and word processing products for Lotus. His research has included collaborative Web browsing, database visualization, instant messaging, and e-mail- and activity-centered computing systems.

Dan Gruen  IBM Research Division, Watson Research Center Cambridge, 1 Rogers Street, Cambridge, MA, 02142 (daniel_gruenus.ibm.com). Dr. Gruen is a research staff member in the Collaborative User Experience group of IBM Research. He managed the group's Reinventing E-mail project, worked on Unified Activity Management, and is now researching collaborative reasoning. He has a Ph.D. degree in cognitive science from the University of California at San Diego, where he conducted detailed observational studies on how people manage multiple activities and handle interruptions. He has been a consultant on usability and interface design for a variety of industries and has taught courses on user-centered design techniques in university and corporate settings. Previously, Dr. Gruen worked as a vice president at Merrill Lynch, where he designed trading support systems.

Michael J. Muller  IBM Research Division, Watson Research Center Cambridge, 1 Rogers Street, Cambridge, MA, 02142 (michael_mullerus.ibm.com). Dr. Muller is a research staff member in the Collaborative User Experience group. He received a Ph.D. degree in cognitive psychology from Rutgers University in 1983. His major education has been through collaborating with the users of technology systems, and in helping religious and other voluntary groups with conflict clarification and conflict resolution. He has worked at Bellcore, U.S. West Advanced Technologies, Microsoft, and now IBM. A member of Computer Professionals for Social Responsibility and the Association for Computing Machinery, Dr. Muller is an internationally recognized expert in participatory design.

John Tang  IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, California 95120 (john.tangus.ibm.com). Dr. Tang is a research staff member at the IBM Almaden Research Center. His research interests focus on understanding the needs of users in order to shape the design of technology in supporting collaboration. He received a Ph.D. degree from Stanford University in 1989, and worked at Xerox PARC and Sun Microsystems, Inc. before joining IBM Research.

Thomas P. Moran  IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, California 95120 (tpmoranus.ibm.com). Dr. Moran is an IBM Distinguished Engineer and leads the Unified Activity Management project. He was one of the pioneers in establishing the field of human-computer interaction (HCI) within computer science, co-authoring (with Allen Newell and Stuart Card) the seminal book, The Psychology of Human-Computer Interaction (1983). He was at Xerox PARC for 27 years as Principal Scientist and manager of user interface and collaborative systems research and as the Director of Xerox EuroPARC in Cambridge, England. Dr. Moran is the founder and editor of the journal Human-Computer Interaction. He is an ACM Fellow and recipient of ACM SIGCHI's (special interest group in computer-human interaction) Lifetime Achievement Award.