This document summarizes a presentation given by Sunny Webb at the Inside 3D Printing Conference on April 3rd, 2014 about digital supply chains. The presentation discussed how digital technology is disrupting traditional business models and supply chains. It noted that digital technologies like 3D printing and the internet of things will allow for more personalized and on-demand manufacturing. The presentation also provided statistics on the growth of the 3D printing industry and examples of how companies are using 3D printing in areas like prototyping, manufacturing and supply chain optimization.