Norie Neumark is Professor of Media Studies, La Trobe University, Melbourne. She is a sound and media artist (http://www.out-of-sync.com) and the coeditor (with Annemarie Chandler) of At a Distance: Precursors to Art and Activism on the Internet (MIT Press, 2005). Ross Gibson is Professor of Contemporary Art, Sydney College of the Arts, University of Sydney. Theo van Leeuwen is Professor of Media and Communication at University of Technology, Sydney.