Screencast-o-matic will allow you to record your screen movements and coordinating audio and save it as a video which can be embedded in your Web site or exported as a Quicktime movie file. The great thing is that it can do all this without the need to install any software. Granted, it doesn’t have a lot of the features of some of the purchasable software but it gets the job done when you want to show some basic directions. Here’s an example: