Linus Torvalds from his presentation of Git to Google in May, 2007 (@9:49 in the video):

[…] quite frankly, as far as I’m concerned, I do open source because I think it’s the only right way to do software, but at the same time, I’ll use the best tool for the job, and, quite frankly, Bitkeeper […]

Revolution OS is a documentary from 2001 that “tells the inside story of the hackers who rebelled against the proprietary software model and Microsoft to create GNU/Linux and the Open Source movement.” It is available and downloadable from google video.
Revolution OS basically documents the history of free software, open source and Linux. Featured in the […]