I recently gave a talk at Re:Develop.io about the history of DevOps, and this page is where you can find the slide deck and other relevant resources.
Re:develop.io DevOps Evolution Slide deck
Agile 2008 presentation by Patrick DuBois
10+Deploys per day, Dev and Ops at Flickr – Youtube
10+deploys a day at Flickr – slide deck
Nicole Forsgren research paper
Deming’s 14 points of management
Beyond the phoenix project (audio)
My Continuous Lifecycle London talk about compliance in DevOps and the cloud