TED is a nonprofit organization devoted to Ideas Worth Spreading. Started as a four-day conference in California 25 years ago, TED has grown to support those world-changing ideas with multiple initiatives. The annual TED Conference invites the world’s leading thinkers and doers to speak for 18 minutes. Their talks are then made available, for free, at www.TED.com. TED speakers have included Bill Gates, Al Gore, Jane Goodall, Elizabeth Gilbert, Sir Richard Branson, Nandan Nilekani, Philippe Starck, Ngozi Okonjo-Iweala, Isabel Allende, and former UK Prime Minister Gordon Brown. The annual TED Conference takes place each spring in Long Beach, California, along with the TEDActive simulcast in Palm Springs; the annual TEDGlobal conference is held each summer in Edinburgh, Scotland.

TED's media initiatives include TED.com, where new TEDTalks are posted daily; the recently launched TED-Ed platform for students and educators; the Open Translation Project, which provides subtitles and interactive transcripts as well as the ability for any TEDTalk to be translated by volunteers worldwide; and TEDBooks, short e-books by speakers that elaborate on a single idea originally presented on TED's stage. TED has established the annual TED Prize, where exceptional individuals with a wish to change the world are given the opportunity to put their wishes into action; TEDx, which offers individuals or groups a way to host local, self-organized events around the world; and the TED Fellows program, helping world-changing innovators from around the globe to become part of the TED community and, with its help, amplify the impact of their remarkable projects and activities. Follow TED on Twitter or on Facebook.