Und3ertak3r, Mandrake and RH make Free Software not Open Source.

You can find an article : "Whence the Source: Untangling the Open Source/Free Software Debate" at http://opensource.oreilly.com/news/scoville_0399.html

for Sick Dwarf and others, you can find an article of Richard Stallman (the father of Free Software) which explain "Why ''Free Software'' is better than ''Open Source'' " at http://www.openresources.com/documen...ter/index.html