Every major communication tool on the Internet has spam and abuse problems. All email services, blogging services and social networks have to dedicate a significant amount of resources and time to fighting abuse and protecting their users.

Take care of yourself: When you don't sleep, eat crap, don't exercise, and are living off adrenaline for too long, your performance suffers. Your decisions suffer. Your company suffers. Love those close to you: Failure of your company is not failure in life. Failure in your relationship is.

Marketing, when done well, is about story telling.

Our problem wasn’t that it blew up and was impossible to scale, but there were some bad choices made. One of the biggest lessons time after time was to focus. Do fewer things.

After high school, I enrolled at the University of Nebraska at Lincoln, but I stayed only a year and a half. I felt college was a waste of time; I wanted to start working.

I tried to be a ski bum when I stepped away from Twitter, and I wasn't a very good skier.

Assume the best but hire paranoid people.