http://commons.wikimedia.org/wiki/File:GNU-Linux_distro_time...
http://www.club-admiralty.com/main/history/diagrams/osdiagra...
This is much better, I think. (It had just 17 pages when I printed it for the last time, sigh.)
http://commons.wikimedia.org/wiki/File:GNU-Linux_distro_time...
http://www.club-admiralty.com/main/history/diagrams/osdiagra...