This document discusses the rise of open source software and contributions to open source. It notes that Facebook contributes to and uses open source software projects like HipHop for PHP and React.js. The document also discusses how startups benefit from open source by moving fast with fresh perspectives and few resources, and through global collaboration and transparency. A timeline is provided of major events in open source including the GNU Project in 1983 and Linux in 1991. The document advocates that many proprietary products now use open source software and provides examples of EMC's focused open source projects like REX-Ray, mesos-module-dvdi, and RackHD.