Screencast-O-Matic

Often, showing someone how to do something is much better than just telling them how, and that holds true for technology. People love video tutorials, and they can add a visual element to any set of instructions. Screencast-O-Matic is a beta service that uses Java to let you create instant and free screencasts over the web. Just click "create," download a small java plugin, and you're off, away, and creating screencasts that everyone can view on the web or you can embed into your own blog or site. Link.