Markus Krajewski is Associate Professor of Media History at the Bauhaus University, Weimar. He is a developer of the bibliographic software Synapsen: A Hypertextual Card Index (www.verzetteln.de/synapsen)

Peter Krapp is Professor of Film & Media Studies at the University of California, Irvine, where he is also affiliated with the departments of English, of Music, and of Informatics.