Screencast On Linux
The Ruby on Rails community has an interesting motto: Show, don’t tell. It is really worth to follow this idea, especially for tutorials or application pages. I usually look for links as Screenshots, Screencast or Demo on such pages — firstly you would like to see what a photo gallery looks like and then you will read instructions how to install it or how to change the background colour…
One of the mentioned presentations is a screencast. (Shortly: A record of everything what happened on your desktop (or its part) — window changes, keystrokes and mouse movements.)
How to create a screencast on Linux? There are applications such as xvidcap, vnc2swf, Istanbul and recordMyDesktop.