I don't think of Twitter as a social network. I think of it as a messaging system that has a lot of social components to it.

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.

If people are passionate about your product, whether it's because they're hating or loving it, those are both good scenarios.

I mean, even when it's really simple, there's so much amazing beautiful creativity that can come out of that.

I knew Mac pretty well. I'd used them when I was younger.

This idea that the open exchange of information can have a positive global impact is being proven over and over again around the world nearly on a daily basis - and for Secretary Clinton to recognize that, I think, is a huge step.

When a plane lands in the Hudson and there's a Twitter user on the ferry taking a picture of it, Boom. That's it. The water is still splashing. Here's the photo of the thing.