Foreword / Philip G. Zimbardo -- Introduction: Persuasion in the Digital Age -- Ch. 1. Overview of Captology -- Ch. 2. The Functional Triad: Computers in Persuasive Roles -- Ch. 3. Computers as Persuasive Tools -- Ch. 4. Computers as Persuasive Media: Simulation -- Ch. 5. Computers as Persuasive Social Actors -- Ch. 6. Credibility and Computers -- Ch. 7. Credibility and the World Wide Web -- Ch. 8. Increasing Persuasion through Mobility and Connectivity -- Ch. 9. The Ethics of Persuasive Technology -- Ch. 10. Captology: Looking Forward