What is Linux and why is it so popular?

What is Linux and why is it so popular?
"What is Linux and why is it so popular?." 01 April 2000. HowStuffWorks.com. 25 November 2008.

How Domain Name Servers Work
Brain, Marshall. "How Domain Name Servers Work." 01 April 2000. HowStuffWorks.com. 20 November 2008.

What does open source mean?
"What does open source mean?." 01 August 2000. HowStuffWorks.com. 20 November 2008.

How Operating Systems Work
Franklin, Curt, and Dave Coustan. "How Operating Systems Work." 14 August 2000. HowStuffWorks.com. 20 November 2008.

A Practical Guide to Linux(R) Commands, Editors, and Shell...

Using Moodle: Teaching with the Popular Open Source Course...
Using Moodle is a complete, hands-on guide for instructors learning how to use Moodle, the popular course management system (CMS) that enables remote...

Python in a Nutshell (In a Nutshell (O'Reilly))
This book offers Python programmers one place to look when they need help remembering or deciphering the syntax of this open source language and its...