Botchagalupe's SDN notes - lots of great stuff in here to learn & read.
The Network The Next Frontier for Devops http://www.slideshare.net/botchagalupe/sdn-and-devops
Cumulus Networks: A Sneak Preview of One of My Favorite Startups - James Hamilton Blog http://perspectives.mvdirona.com/2013/06/18/CumulusNetworksASneakPreviewOfOneOfMyFavoriteStartups.aspx
Stanford Seminar - Software-Defined Networking at the Crossroads http://www.youtube.com/watch?v=WabdXYzCAOU
NetworkStatic | Brent Salisbury Blog http://networkstatic.net/