A Field Guide to Free Software Supporters
Hearing the terms "free software" or "open source," you might imagine that they referred to a single school of thought. Even "free and open source software" (FOSS) suggests only two different outlooks: Free software, which values political and philosophical freedom, and open source, whose main interest is enhanced software quality.
Full story http://itmanagement.earthweb.com/osrc/article.php/12068_3723131_1
An interesting analysis of different schools of thought.
Cheers Praveen