1. TED TalksTED Talks are the most popular way to participate in TED. These are the taped 18-minute lectures that have been collected since 1984. Thanks to all the great new techy gadgets available, you can watch TED Talks anywhere now, any time you want.
Check out the list of videos at TED Talks.
If you're a teacher, be sure to check out how you can "flip" these videos, customizing them for your own lesson plans: Customize Lesson Plans with TED-ED
2. TED ConferencesThere are two primary TED Conferences every year, one in Long Beach, CA ($75,00), which is invitation only, and TEDActive ($2,500) in Palm Springs for "the young, the wise, the undiscovered."
An international conference, TEDGlobal ($6,000), is held every summer in Edinburgh, UK.
Schools and organizations can join TEDLive for various prices and watch both conferences live.
3. TEDx EventsTEDx events are more accessible to those who can't afford to participate in one of the larger conferences. These are smaller events organized by individuals around the world, giving more people "the opportunity to stimulate dialogue through TED-like experiences at the local level."
You'll find a lot of these taking place on college campuses, many of which have specific themes. A world map on the TEDx page shows all upcoming events. There's likely to be one near you, wherever you are.
4. TEDPrizeTED is all about the sharing of ideas. It started out focused on technology, entertainment, and design, but it's much bigger than that today, and there's room for your idea, "for a wish that can inspire the world."
If you have an idea, a wish, to share, TEDPrize is the place to share it, and you just might earn yourself $1 million to help make your idea a reality. You can nominate yourself or someone else.
5. TED ConversationsTED Conversations are a chance for anybody who registers, which is free, to participate in asking a question, sharing an idea, or starting a debate. Each conversation stays on the site for one month. Start a conversation about something you're passionate about!
6. TED BlogSubscribe to the TED blog and keep up with the latest going on in the organization. There's a handy little pull-down menu on the right navigation bar for finding blogs about the topics of interest to you.
7. TED Open Translation ProjectAre languages your thing? Volunteers around the world are helping to translate all TED Talks into lots of different languages. Maybe you can help: TED Translations
As of July 2012, talks have been translated into 89 languages!