Check out our new series of Astronomy Demonstration Videos entitled AU available under the Resources tab here. The videos are 2 to 3 minutes long and consist of a demonstration commonly appropriate for the introductory astronomy classroom prefaced with enough explanation to provide the proper context. We created these videos with distance education courses in mind where typical students go the entire semester without seeing a demonstration, but they are also useful for instructors with limited equipment or limited time to set equipment up. The videos can be run online or downloaded to a local computer. They are freely available for any non-profit educational use.