Professional and Community Service:
- Program Committee, Creativity & Cognition, 2006-2007
- Reviewer, National Science Foundation, 2006
- Panelist, Emerging Technologies, MIT CIO Symposium, Cambridge, 2006
- Delegate, World Summit on the Information Society, Tunis, 2005
- Conference Committee, Interaction Design and Children, 2005
- Key Rapporteur, Learning Enablers, Towards a Learning Society, Brussels, 2005
- eLearningeuropa expert, Pau Education, Barcelona, 2005
- Invitee, Creating, Sharing and Re-using eLearning content, National College of Ireland, 2004
- Program Committee, Story Representation, Mechanism and Context, ACM Multimedia, 2004
- Advisory Board, Liberating Learning, Dublin Digital Hub, 2004
- Program Committee, 8th Eurographics Workshop on Multimedia, 2004
- Advisory Board, 6th International Conference on Computational and Cognitive Models of Creative Design, 2003-2004
- Program Committee, ACM Technology-Enhanced Learning, 2003
- Vice-Chair, International Conference on Design Computing and Cognition, 2002-2004
- International Committee, Visual and Spatial Reasoning in Design conferences, University of Sydney, Australia, and University of Aberdeen, Scotland, 2000-2002
- Reviewer, MIT Press, 2000-2001
- Reviewer, Design Computing on the Net, 2000
- Reviewer, Royal Society of New Zealand Marsden Fund, 2000
- Juror, Department of Architecture, MIT, 2000
- Invitee, Digital Childhood: A Research Agenda on Human Development & Technology, 2000
- Session Chair, Adaptive Hypermedia, International Workshop on Advanced Learning Technologies, 2000
- New Media SIG, Fogg Museum, Harvard University, 1999
- Reviewer, Spatial Cognition II, Springer-Verlag, 1999
- Juror, Graduate School of Design, Harvard University, 1998-2000
- Panel Chair, Parent/Child/Physician Communication, Future of Health Technologies, 1998
- Guest coordinator, Learning Designs, Multimedia Unplugged, neoMuseum, Japan, 1998
- Vision Award Committee, Boston Film/Video Foundation, 1998
- Reviewer, ACM CHI conference, 1998
- Reviewer, IBM Systems Journal, 1997-2001
- Advisory Board, Ocean of Know / Young MacDonald's Farm (NSF-funded informal education consortium, NY), 1997-1999
- Coordinator, Internship Program, MERL, 1997-1999
- Facilitator, 2B1 Foundation (MIT Media Lab project on technologies in 3rd World countries), 1997
- Reviewer, ACM Multimedia conference, 1997
- Board of Special Reviewers, User Modeling and User-Adapted Interaction, 1996-2000
- Reviewer, International Conference on the Learning Sciences, 1996
- Mentor, Keypals program, Cambridge Public Schools, 1996
- Juror, Interaction Design Awards, ACM Interactions, 1995-1997
- Reviewer, IEEE Multimedia conference, 1995-1997
- Invitee, NSF Workshop on a Research Agenda for Educational Technology, 1995
- Atelier Gargarian (collective of learning researchers), 1995
- Juror, Rhode Island School of Design, 1994, 2000
- Reviewer, International Conference on Technology and Education, 1993
- Reviewer, ACM SIGGRAPH conference, 1993
- Editorial Board, Presence: Teleoperators and Virtual Environments, MIT Press, 1992-present
- Member, Association of Computing Machinery, various years 1992-present
- Mentor, Research Science Institute, 1992, 1994, 1996, 1998
- Reader, Reading Service for the Blind, Marshfield MA, 1992
- Reader, Radio Reading Service, Baltimore MD, 1977
- Announcer, WBJC, Baltimore MD, 1974