We're going to build a better product than everyone else because we're going to get it out first or early. We're going to have a good feedback loop. We're going to get a bunch of feedback.

We think the fact that Instagram is connected to other services beyond Facebook is an important part of the experience...This is an important milestone for Facebook because it's the first time we've ever acquired a product and company with so many users.

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.

I'm never fully satisfied with any Microsoft product.

At Google, especially, we are really lucky. Everybody is our product! Or it's starting to be everybody.

Starting and growing a business is as much about the innovation, drive, and determination of the people behind it as the product they sell.