What Should be Included in a Linux Crash Course?

Olivier Van Acker asks: "Since I started working at my current job a year ago I've installed on average one (Gentoo) Linux machine a month. Included are developer desktop machines, development servers, router/firewall, web servers, video server, MPEG encoders, etc. (It's a platform for interactive television). Since I'm the only one who is able to maintain them I want to train two of my colleagues. I've got three days dedicated time, three computers to work with and they are both Linux/Open source newbies (A technician and a programmer). What should this crash course include, what is the best learning method and what resources are available online?" "My background: I'm a programmer, a systems engineer and I used to give IT training. I have been using Unix-based operating systems since 1995.

My list so far:

Linux system Installation

Software installation

General Linux system administration

Network administration

Web server configuration

Database administration

Video server administration

History of Unix and Linux

Philosophy of open source software"