The Internet was supposed to allow anyone to set up a web page and share their knowledge with the world. But in practice, it's too difficult and takes too long, and almost no one does it.

There's a lot of information that has been in peoples' heads and hasn't gotten onto the Internet. Even as the Web has gotten really big, there's just been this gap. So we made Quora as a general place for people to share knowledge of all kinds.

When you look at Google, its job is to find you the perfect web page. There are a lot of cases when you want to know something and a list of websites isn't ideal.

More than a billion people use the Internet, yet only a tiny fraction contribute their knowledge to it.

Our goal is to build this up as a knowledge base that anyone can look at. We're not just interested in people answering their friends' one-off questions.

You have to get comfortable giving up control, and you find people who do things better than you do. Quora now does better with the team we have built.