Three online courses at the authors' institution have successfully used an extensive guest lecturer format (N = 22-30) for almost 10 years. The course design facilitates networking within the relatively small but diverse and global field of aquatic animal health. In this study of students' learning experiences, students perceived the courses as valuable and provided ample positive feedback in appreciation of the inclusion of many diverse guest speakers. Moreover, only minimal course design modifications were identified to improve upon learner satisfaction and academic success.