History: The rise of Illumos, base for all current free Solaris derivates like OpenIndiana, Illumian (successor of NexentaCore), SmartOS and Schillix
http://www.slideshare.net/bcantrill/fork-yeah-the-rise-and-development-of-illumos
http://www.slideshare.net/bcantrill/fork-yeah-the-rise-and-development-of-illumos