To see things differently requires you to be wired a little differently.

The strategy of Tumblr is very elegant.. The atomic unit of user experience is the same as the ads.

Startups are rapidly changing systems. If you use an annual review cycle, you aren't getting feedback at the same pace that you need to adapt and change the business.

Ideas that most people derided as ridiculous have produced the best outcomes. Don't do the obvious thing.

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.

Foursquare's adoption of a game dynamic when it launched is a particularly clever implementation of a social hook.

When my dad was in Vietnam, we lost a parent for a year. Thank God we didn't lose a parent for good.