Leggett, J.J., "Digital Libraries Research: Up a Creek Without a PADL," Amigos 2000 Conference, Puebla, Mexico, Feb. 10-12, 2000.
Leggett, J.J., "Digital Libraries: Issues of Scholarship and Literacy in the 21st Century," invited speaker for the Lazerow Lecture Series at the University of North Texas, Denton, TX, Nov. 12, 1998.
Leggett, J. J., "Camping on the Banks of the Hypermedia Literature: Waiting for (a Hyperliterate) Civilization to Arrive," Keynote Speaker, Hypertext 98 Conference, Pittsburgh, PA, June 22, 1998.
Leggett, J. J., "Digital Libraries: Issues of Scholarship and Literacy in the 21st Century," Keynote Speaker, Virtual Library Perspectives Session of the 3rd Congress on Health Sciences Information, BIREME, Rio de Janeiro, Brazil, Oct. 14-21, 1996.Leggett, J. J., "Planning for the Future of Engineering Libraries," Keynote Speaker, Engineering Libraries Session of the 1996 American Society for Engineering Education Annual Conference, Washington, DC, June 23-26, 1996.
Leggett, J. J., "Integrating Space and Time in User Interfaces," Keynote Speaker, International Symposium on Human Media Technology, a special session of the International Conference on Artificial Reality and Tele-Existence/Conference on Virtual Reality Software and Technology, Tokyo, Japan, November 20-22, 1995.
Leggett, J. J., "Digital Libraries," Information Networks and Multimedia Technology: The Future of Books and Libraries Lecture Series, Estudos Gerais da Arrabida-Conferencias do Convento, Lisbon, Portugal, October 16-18, 1995.