What is Open Source Software?

This is actually my answer to one of my friends who wonder, what is open source software.

An excellent Arabic white paper about open source software:
http://www.freesoft.jo/people/kefah/freesoftware_whitepaper_arabic.pdf

Wikipedia, have have a good article about open source software, look at:
http://en.wikipedia.org/wiki/Open_source_software

List of open source software for Windows:
http://ahm507.blogspot.com/2007/01/open-source-software-for-windows.html

List of open source software packages:
http://en.wikipedia.org/wiki/List_of_open_source_software_packages

From ahm507.blogspot.com