Selected Service at the National University of Singapore
- Director, Core Curriculum, 1999-2000
- Dean, University Scholars Programme, 2000-2
- Member, University Senate, 1999-2003
- Member, University Council (Board of Trustees), 2000-2
- Governing Board, Singapore University Press, 2000-3
Selected Service at Brown University
- Director of Undergraduate Studies, 1996-1998
- Honors Advisor (director of Honors Program): various terms
- Chair of the Faculty and Faculty Executive Committee, Brown University (1988-89).
- Faculty Advisory Committee on Computing
National Selection Committees, Program Committess, and so on
- Literature Committee, Graduate Record Examinations Board, ETS, 1990-98
- Chair, 1996-98
- National Selection Board, Fulbright Scholarships (U. K.), 1989-91, 2005-06; S. E. Asia 2007
- Program Committees, ACM Hypertext conferences '89, '91, and '93, '05, '08, '09, '11 and for ECHT'94, [European Community Hymermedia Technology '94], Web Science 2013]
- Selection Committee, ACLS Digital Projects, 2006-2007
- Program Committee, WikiSym 2008 (Portugal)
- Scientific committee, International Conference on Electronic Literature and New Media Art, Madrid 2012
Editorial Positions
- Consulting Editor, The International Literary Quarterly,, 2009-
- Foreign Scientific Committee, Paratext, Rome, 2004-
- Advisory Board, Digital Horizons series, Synchron Wissenschaft, Heidelberg, 2002-
- Advisory Board, Carlyle Studies Annual, ?-2006
- Editorial Board, The Internet and Higher Education, 1997
- Editorial Board, Journal of Digital Information, 1996-
- Advisory Board, Convergence -- The Journal of Research into New Media Technologies (1995-2011)
- Member, Editorial Board, Journal of Pre-Raphaelite Studies (1995-)
- Member, Editorial Board, and Associate Editor, The Journal of Computing in Higher Education (1991- )
- Consulting Editor, UMI Research Press, 1985-87
- Member, Editorial Board, Journal of Pre-Raphaelite and Aesthetic Studies (1987-89)
- Trustee, Journal of Pre-Raphaelite Studies (1980-87)
Miscellaneous
Evaluator of manuscripts for various publishers including Routledge & Kegan Paul, Harvard, Toronto, Princeton, Ashgate, Cambridge, California, Cornell, Pennsylvania, Ohio, and Brown and for various periodicals including Victorian Studies, Victorian Poetry, Art Bulletin, Hypermedia, Modern Philology, Novel, Mosaic, Studies in English Literature, Studies in Iconology, Papers in Language and Literature, The Journal of Teacher Education, and The Journal of English and Germanic Philology.
Referee for tenure and other promotions in the Departments of English, History, and Art History at various universities.