Why We Collaborate: “The world has over a trillion hours a year of free time to commit to shared projects,” says professor Clay Shirky. But what motivates dozens, thousands, even millions of people to come together on the Internet and commit their time to a project for free?  What is the key to making a successful collaboration work? In this hour, TED speakers unravel ideas behind the mystery of mass collaborations that build a better world.

Jimmy Wales: Why Does Wikipedia Work?

Luis Von Ahn: Can You Crowdsource Without Even Knowing It?

Clay Shirky: What Motivates Us To Collaborate?

Jason Fried: Is Too Much Collaboration a Bad Thing?

Jennifer Pahlka: Can You Code A Better Government?