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Accepting his 2006 TED Prize Cameron Sinclair demonstrates how passionate designers and architects can respond to world housing crises. He unveils his TED Prize wish for a network to improve global living standards through collaborative design. ted cameron sinclair open source architecture

TED has created a program called TEDx. TEDx is a program of local, self-organized events that bring people together to share a TED-like experience.

In this powerful talk from TEDGlobal, Rebecca MacKinnon describes the expanding struggle for freedom and control in cyberspace, and asks: How do we design the next phase of the Internet with accountability and freedom at its core, rather than control? She believes the internet is headed for a "Magna Carta" moment when citizens around the world demand that their governments protect free speech and their right to connection.

What would happen if we could generate power from our windowpanes? In this moving talk, entrepreneur Justin Hall-Tipping shows the materials that could make that possible, and how questioning our notion of 'normal' can lead to extraordinary breakthroughs.

Best of TED Talks on Social Media

Jane McGonigal is one of the most interesting inventors you've never heard of.The bubbly game designer -- whose optimism seems to flow out of her wild blond hair -- is trying to get the world to play a lot more online video games, and not just for the sake of fun.The cooperative skills and hopefulness that people learn while pecking away at online games like World of Warcraft will help our society address real-world problems like climate change and nuclear arms proliferation, she says. To get people to use less oil and mentor entrepreneurs in Africa, she also is developing games that merge the digital and real worlds.

Jane McGonigal - Video on TED.com

At TEDxSydney, Rachel Botsman says we're "wired to share" -- and shows how websites like Zipcar and Swaptree are changing the rules of human behavior.

Feeling like the world is becoming less friendly? Social theorist Jonathan Zittrain begs to difffer. The Internet, he suggests, is made up of millions of disinterested acts of kindness, curiosity and trust.

By leading the Americans in his audience at TEDxPSU step by step through the thought process, sociologist Sam Richards sets an extraordinary challenge: can they understand -- not approve of, but understand -- the motivations of an Iraqi insurgent? And by extension, can anyone truly understand and empathize with another?

Speaking at LIFT 2007, Sugata Mitra talks about his Hole in the Wall project. Young kids in this project figured out how to use a PC on their own -- and then taught other kids. He asks, what else can children teach themselves?

Most of us will do anything to avoid being wrong. But what if we're wrong about that? "Wrongologist" Kathryn Schulz makes a compelling case for not just admitting but embracing our fallibility.

We feel instinctively that societies with huge income gaps are somehow going wrong. Richard Wilkinson charts the hard data on economic inequality, and shows what gets worse when rich and poor are too far apart: real effects on health, lifespan, even such basic values as trust.