Free & Open Source Software

"Free as in Freedom: Open Distribution; Open Modification"

Free Software Foundation

GNU Operating System

GNU/Linux Operating System

The Open Source Initiative

The Open Group

Wikipedia

Bell Labs

SourceForge.net

Zope

Open Source Development Labs

Open Source Technology Group

The Apache Foundation

MySQL

Postgres

FreeBSD

NetBSD

OpenBSD

OpenOffice

Red Hat

Suse (Novell)

Debian

Gentoo

Knoppix

Slackware

Mandrake

PHP

Python

Gay, J.(ed.) Free Software Free Society: Selected Essays Of Richard M. Stallman. Boston: GNU Press, 2002.

St. Laurent, Andrew M. Understanding Open Source & Free Software Licensing. Sebastopol: O'Reilly, 2004.

Gancarz M. Linux and the Unix Philosophy. New York: Digital Press, 2003.

Raymond, Eric S. The Cathedral & The Bazaar: Musings On Linux And Open Source By An Accidental Revolutionary. Sebastopol: O'Reilly, 199, 2001.

Weber, S. The Success of Open Source. Massachusetts: Harvard University Press, 2004.