On December 9, 1968, Doug Engelbart and his Augmentation Research Center (ARC) at SRI staged a 90-minute public multimedia demonstration which presaged many of the technologies we use today – from personal computing to social networking. This was the world debut of the computer mouse, used to demonstrate an interconnected organizational computing system with integrated hypertext linking, collaborative composing, multiple windows with flexible view control, knowledge navigation, teleconferencing, and more. The integration of these tools into an experimental team's new modes of working on an evolving basis would boost team effectiveness to higher and higher levels. Research results included this "Augmentation System" and a set of guiding principles for others in this arena. Visit Doug's Great Demo: 1968 at theDemo.org for more links and fun facts.