"Screencast-O-Matic is the original free and easy way to make a video recording of your screen (aka screencast) and upload it for free hosting all from your browser with no install!"
Screencasting is a better and great way to showcase a procedure, to teach,demonstrate a service or to create video tutorials without having to write a content or an article. Screencasting tools are available both as desktop applications (Free and commercial) and web-based services. The good news is that there are a growing number of screencasting tools that are completely free to use; some do not even require a registration to let you get started.