A frustration I have is that a lot of people increasingly seem to equate an advertising business model with somehow being out of alignment with your customers. I think it's the most ridiculous concept.

We are a mission-driven company. In order to do this, we have to build a great team. And in order to do that, you need people to know they can make a bunch of money. So we need a business model to make a lot of money.

You know your business model is broken when you're suing your customers.

Textbook rental is a great concept. It is just a great business model.

I think Microsoft will have to change. I think that the business of Microsoft, the company of Microsoft, is going to continue to succeed. But I think the business model of Microsoft is going to have to change.

Napster was predicating its business model on violation of copyright.