Environmental change is ideally taught through field observations; however, leaving the classroom is often unrealistic due to financial and logistical constraints. The Internet offers several feasible alternatives using webcams that instructors can use to illustrate a variety of geographic examples and exercises for students. This article explores the use of webcams for illustrating important spatial concepts of temporal change and movement, and offers several examples of classroom use of webcams. It shows how to find webcams and provides useful webcam site addresses. The article offers a webcam-based exercise for students that reinforces basic physical geography concepts. (Contains 5 figures and 2 tables.)