I would only hire someone to work directly for me if I was willing to work for that person.

At Facebook, we build tools to help people connect with the people they want and share what they want, and by doing this we are extending people's capacity to build and maintain relationships.

For the first time we're allowing developers who don't work at Facebook to develop applications just as if they were. That's a big deal because it means that all developers have a new way of doing business if they choose to take advantage of it. There are whole companies that are forming whose only product is a Facebook Platform application.

In a lot of ways Berlin is a symbol for me of Facebook's mission: bringing people together, connecting people and breaking down boundaries.

Google, I think, in some ways, is more competitive and certainly is trying to build their own little version of Facebook.

In the future, I think you are going to want to capture a whole scene, a room, to be able to transport to that. To be able to stream what you are doing live and have people be able to interact in that space.

I think people tend to be worried about every new technology that comes along.