Podcasts contain information on almost any topic, delivered via the Internet in audio or video form. They allow learners to access information at anytime from anywhere, with no constraints--just the free flow of information. As a result, a revolution is taking place in education, leading to new ways of teaching and learning. This article helps readers gain a basic understanding of podcasting. It provides a definition of podcasting, describes how the technology works, how to locate podcasts, and how they are being used by teachers.