Shlomi Fish, http://www.shlomifish.org/
Thanks to Chen Shapira for taking the time to read several early drafts of this document and provide useful comments. Thanks to Nadav Har'El for summarising the early history of UNIX and the BSDs for me.
And naturally thanks to Richard Stallman for starting the GNU project, Eric Raymond for writing the "Cathedral and the Bazaar" series and so all the way back to thanking God for creating the universe.
This document is copyrighted by Shlomi Fish under the Creative Commons Attribution licence version 2.5 or at your option a greater version.