Until now, research on podcasting in education mostly examined teacher created podcasts in K-12 and higher education. This paper explores podcasts in professional learning across several genres of podcasts. Using a popular typology of podcasts, teacher created, student created and professional development podcasts (King & Gura, 2007), this paper compares, contrasts and reveals the potential of multiple educational contexts and instructional strategies, formative instructional design, interdisciplinary strategies, formal and informal learning, and effective uses of data gathering methods. The significance of the study extends from not only the extensive reach of the data gathering and production, but also the robust research model, formative and dynamic instructional design for staff development and recommendations for podcasting research strategies.