Persuasive technology is the general class of technologies that purposefully apply psychological principles of persuasion – principles of credibility, trust, reciprocity, authority and the like – in interactive media, in the service of changing their users’ attitudes and behavior. Only one year ago, in 2006, the first international conference in this area, PERSUASIVE 2006 was hosted in Eindhoven. The conference was entirely geared towards communicating the progress made in the area of persuasive technology, and towards presenting recent results in theory, design, technology and evaluation. It brought together a wide range of research fields, including social psychology, HCI, computer science, industrial design, engineering, game design, communication science, and human factors, and the formula worked: plans for a follow-up were made immediately upon its conclusion. PERSUASIVE 2007, the second international conference on persuasive technology, was hosted by Stanford University, April 26–27. The program featured a large number of presentations, both oral and in poster format, on new findings, new conceptualizations and designs, and new reflections on persuasion through technology. Sponsored by the National Science Foundation, this conference featured the best new insights into how video games, mobile phone applications, and Web sites can be designed to motivate and influence people.
Lecture Notes in Computer Science Commenced Publication in 1973 Founding and Former Series Editors: Gerhard Goos, Juris Hartmanis, and Jan van Leeuwen Editorial Board David Hutchison Lancaster University, UK Takeo Kanade Carnegie Mellon University, Pittsburgh, PA, USA Josef Kittler University of Surrey, Guildford, UK Jon M. Kleinberg Cornell University, Ithaca, NY, USA Friedemann Mattern ETH Zurich, Switzerland John C. Mitchell Stanford University, CA, USA Moni Naor Weizmann Institute of Science, Rehovot, Israel Oscar Nierstrasz University of Bern, Switzerland C. Pandu Rangan Indian Institute of Technology, Madras, India Bernhard Steffen University of Dortmund, Germany Madhu Sudan Massachusetts Institute of Technology, MA, USA Demetri Terzopoulos University of California, Los Angeles, CA, USA Doug Tygar University of California, Berkeley, CA, USA Moshe Y. Vardi Rice University, Houston, TX, USA Gerhard Weikum Max-Planck Institute of Computer Science, Saarbruecken, Germany 4744 Yvonne de Kort Wijnand IJsselsteijn Cees Midden Berry Eggen B.J. Fogg (Eds.) Persuasive Technology Second International Conference on Persuasive Technology, PERSUASIVE 2007 Palo Alto, CA, USA, April 26-27, 2007 Revised Selected Papers 13 Volume Editors Yvonne de Kort Wijnand IJsselsteijn Cees Midden Eindhoven University of Technology Technology Management PO Box 513, 5600 MB Eindhoven, The Netherlands E-mail: {y.a.w.d.kort, w.a.ijsselsteijn, c.j.h.midden}@tue.nl Berry Eggen Eindhoven University of Technology Industrial Design PO Box 513, 5600 MB Eindhoven, The Netherlands E-mail:
[email protected] B.J. Fogg Stanford University Persuasive Technology Lab Box 20456 Stanford, CA 94309, USA E-mail:
[email protected] Library of Congress Control Number: 2007941160 CR Subject Classification (1998): H.5, H.1, J.3-4, K.4.1, I.6, I.2.0, I.2.6 LNCS Sublibrary: SL 3 – Information Systems and Application, incl. Internet/Web and HCI ISSN ISBN-10 ISBN-13 0302-9743 3-540-77005-4 Springer Berlin Heidelberg New York 978-3-540-77005-3 Springer Berlin Heidelberg New York This work is subject to copyright. All rights are reserved, whether the whole or part of the ma