Social entrepreneurs come from all levels of society and from communities in nearly every country of the world. They all share the same underlying drive and passion to see their ideas through. Many of them have had a huge effect on the world, yet most people have not even heard of them - a trend we hope to change!

The pace at eBay was frantic and urgent. We knew that if we didn't move fast, somebody would come into the market and quash us. Participant doesn't make a lot of sense from a financial investment perspective, so it's unlikely that other people will be approaching the business in the same way. So you see less urgency; you see a thoroughness and willingness to spend extra time to get things right. Which I think is really important.

Philanthropy is all about making a positive difference in the world by devoting your resources and your time to causes you believe in. In my case, I like to support causes where "a lot of good comes from a little bit of good," or, in other words, where the positive social returns vastly exceed the amount of time and money invested.

The goal here is to build a brand around social relevance in media (with his Participant Productions company).

Not everyone can be Gandhi, but each of us has the power to make sure our own lives count - and it's those millions of lives that will ultimately build a better world.

I learned Hollywood is a small community, and you really have to be a part of the community to get anything done. Unlike traditional industries, where you can do things from afar with phone calls and e-mail, this town is really about being social. Because that's how trust gets built.

Social entrepreneurs come from all levels of society and from communities in nearly every country of the world. They all share the same underlying drive and passion to see their ideas through. Many of them have had a huge effect on the world, yet most people have not even heard of them - a trend we hope to change!