One way to create animations in Linux is to use the GIMP Animation Package (GAP).
It's easy to be impressed by Apple's Time Machine backup feature. It works in the background, is seamlessly integrated, and when you need to get to restore something whoa..
The idea that you could just change the way your computer's user interface looks like and behaves is pretty foreign to most people that typically use Windows or Apple's OSX.
Linux iptables Pocket Reference is a really great little book, and although it’s been written a good few years ago, most of the explanations still apply.
UPDATE: I've ultimately decided to sell Nuxified.org, the reason being it would be too much time to focus on both Nuxified and Libervis.com simultaneously, in addition to other projects.