The evolution of eBooks has made the headlines in the media around the world and has led to lively discussions about if and how eBooks will change the world. Any anticipated changes that the emergence of eBooks might cause, will depend on the corresponding use of the new technology. Whereas research has extensively examined the acceptance and use of IS within organizational settings and for utilitarian purposes, less attention has been paid to the acceptance and use of primarily hedonic IS such as eBooks. In this context, this paper asks "what drives peoples' eBook use". It introduces the emerging eBook phenomenon and outlines a research model that brings together the user intentions grounded in behavioral disciplines and the business models and strategies executed by the eBook providers. It finds that there is a need of interdisciplinary research at the crossroads of psychology, marketing, strategy, and information systems (IS) in order to understand eBook use.