In any leadership position, you're always going to be disappointing somebody.

The future of marketing is philanthropy.

The most rewarding thing for me has been this affirmation for me that people are basically good and smart, and if you give them a simple tool that allows them to exhibit that behavior, they'll prove it to you every single day.

We actually created Twitter and Odeo at the same time. When we realized we didn't really want to be running Odeo anymore we looked around for anyone who wanted to buy Odeo, but not acquire us as a technology. But people aren't as interested in that.

The determination that led me to create a new sports team taught me an important lesson: opportunity is manufactured.

I thought I was going to stay at Google, because it was a great place to work.

The two things I use the most are the MacBook Air and my iPhone. Those are my two most-used gadgets that are dented, scratched and smashed.