If you want to create something great and do it faster than the competition, you need to be action oriented.

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.

I believe Android will be stronger in the developing world than it is in the developed world.

Skyping with your spouse works well enough, but apparently it is hard to get the kids to hang out on Skype for long.

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.

It's upsetting to me that you have to be a millionaire to invest in your friend's start-up.

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.