This study examined student success, failure, withdrawal, and satisfaction in online public relations courses based on instructor-student interaction, student-student interaction, and instructor presence. Student passing rates, D/F rates, withdrawal rates, and evaluations of instruction were compiled from fifty-one online PR courses run over the course of two years. The results from the study suggest that student--student interaction and self-discipline are the strongest predictors of success and satisfaction with online courses. Implications for online instructors are included.