Over the last four years, TED has evolved from a 1,000-person conference to something much larger … TED Talks have been viewed more than 400 million times worldwide, and are available in 80 languages, thanks to volunteer translators. And over the last two years, more than 1000 independently organized “TEDx” events have been held worldwide, in 100 countries and 50 languages. What’s enabled this growth? The cross-cultural, cross-generational appeal of TED’s mission (“Ideas worth spreading”) and also the philosophy of “radical openness” that’s underscores all of TED’s initiatives. From the conference to the code, TED has been opening itself up for participation, and this has had a profoundly positive effect on its mission, its scale, and its bottom line. In this presentation, we’ll share the details of how TED has opened up, and what this has meant from both a business perspective, a content perspective and a technology perspective.