For every new feature we add, we take an old one out. A lot of big sites don’t do that, and it’s a problem. Twitter started as a beautifully simple product, but it’s now going the same route as Facebook. The drive to innovate can overencumber and destroy a product.

We've tried to keep as cheap and lean an operation as possible.

I'm very antischedule. Except for board meetings, I don't really schedule things or keep a calendar. I think appointments are caustic to creativity.

Reading for me will be a combination of books, magazines, Tumblr, and just kind of the Web in general on the iPad.

I want to build something I’d be happy to be employed by 10 years out.

Rituals, even unhappy ones, provide a measure of comfort. Like a superstitious ballplayer who will only use certain bats, my depression rituals have become a fixed, normal part of my life. ... I need rituals to prevent unnecessarily rocking my already shaky emotional boat.

Good products are built by people who want to use it themselves