Self-service technologies in the service industry are of increasing importance. Therefore, there is a rising interest in research related to the acceptance of these technologies, in order to make them more effective and to enhance their usability. This paper reviews the status quo of the theoretical and empirical research in this field. Based on the innovation decision process by Rogers and the technology acceptance model by Davis, the most important characteristics of self-service technologies and their potential users are presented. A synopsis of 65 quantitative and qualitative studies reveals consistent findings for the majority of the characteristics. Gaps in existing research are indicated, and suggestions for future research and practice are made.