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/
Network World: A conversation with Kelly Wanser, CEO of Stateless Networks http://www.statelessnetworks.com/network-world-a-conversation-with-kelly-wanser-ceo-of-stateless-networks/
The OpenFlow Book https://leanpub.com/the-openflow-book
EtherealMind.com - Switching, Routing, Security, Design, SDN http://etherealmind.com/
Why is Nicira worth $1.2 billion? http://www.infoworld.com/t/virtualization/why-nicira-worth-12-billion-199402
Ben Horowitz Explains Why Tiny Startup Nicira Was Worth $1.26 Billion To VMware http://www.businessinsider.com/ben-horowitz-explains-why-tiny-startup-nicira-was-worth-126-billion-to-vmware-2012-7#ixzz2kOMOi953
Chef Cookbook (Netdev) - http://community.opscode.com/cookbooks/netdev
Chef Quagga Cookbook https://github.com/nabeken/tknetworks-cookbooks/tree/master/quagga
Puppet Quagga Routing Module - http://forge.puppetlabs.com/johann8384/routing
Puppet Netdev Module - https://forge.puppetlabs.com/juniper/netdev_stdlib_junos