When you think of a social network, you have these two-way interactions: "Are you my friend? Yes? No? Yes?" Like LinkedIn, it's business oriented, but it's all about establishing connections. You connect to me through my other connections, and that sort of thing, and you sort of define who your friends are. Twitter doesn't have that.

I'd dropped out of college to start design thing.

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

I'm curious about writing in the age of online publishing. Because nobody cares about good writing online.

You have to think for an email. What's the subject? What's it about? It takes two seconds to think about that. So you have to think, Is this a work thing or a social thing? Which? Then you get into a situation that you don't want to be in, because then people are thinking about it too much.

I started designing book jackets, which was great because I was good at it. And then from there I decided to become a freelance graphic designer and I needed to expand beyond book jackets, so I taught myself web design, and then in 1999 some friends of mine decided to start a company called Xanga.com, which was a very early kind of social network slash blogging community.

Twitter provides a great amount of timely information, but we still need those people to fill out the rest of the story and the context.