Screencasting allows instructors to record their computer screen activity along with audio narration. This tool can be used to demonstrate skills or tutorials for students. The document reviews the screencasting software Screencast-O-Matic, which allows users to record and share screencasts for free. Screencast-O-Matic saves files in common formats and automatically uploads to YouTube. While it is limited by ads and lack of support, the software provides a basic option for creating instructional screencasts to supplement online teaching. Examples of uses include tutorials, individual paper feedback, and narrated PowerPoints.