The companies that do the best job on managing a user's privacy will be the companies that ultimately are the most successful.

If you have a native monetization system where the atomic unit of content is the ad unit, that scales down all the way to a small screen experience. That's why Twitter is performing so well on mobile.

My venture investing career has three phases, all roughly 6-8 years long. The first, at Euclid, was software to Internet. The second, at Flatiron, was Internet to bubble. And the third, at USV, has been web 2 to mobile. I have always used a new firm to denote a new investment phase for me. Throw away the old. Start with the new.

Equity capital is expensive. Every time you do a raise, you dilute.

I think 'crazy' is a compliment. I think you make money with people who are crazy.

Don't try to solve the entire problem on day one.

People already love to play casual games. But when you take a casual game and stick it inside a social network, it becomes way more exciting.