Member, National Academy of Sciences Member of the Committee on Technical and Privacy Dimensions of Information for Terrorism Prevention and Other National Goals (2005-08)
Reporter, American Law Institute Project on Principles of the Law of Government Access to and Use of Digital Personal Information (2006-08)
Member, Privacy and Information Law Report Board of Editors (2000-08)
Chair, International Telecommunication Union High-Level Experts on Electronic Signatures and Certification Authorities (1999)
Member, Federal Trade Commission Advisory Committee on Online Access and Security (2000)
Member and principal drafter of the Tampere Convention on the Provision of Telecommunications Resources for Disaster Mitigation and Relief Operations, United Nations Working Group on Emergency Telecommunications (1994-2002)
Vice Chair, American Bar Association Section on Health Law Electronic Communications and Privacy Interest Group (1998-2000)
Member, International Association of Science and Technology for Development Technical Committee on Law and Technology (1999-2001)
Member, Committee on Institutional Cooperation Copyright and Intellectual Property Committee (1997-2000)
Member, Indiana Public Access Task Force (1998-99)
Chair, American Association of University Professors Subcommittee on Intellectual Property Rights (1997-98)
Director, Brookings Institution Electronic Commerce Study (1996-97)
Director of Research and Projects, The Annenberg Washington Program in Communications Policy Studies of Northwestern University (1991-96) (ptreviously Senior Fellow (1991-93) and Fellow (1990))