Then they show up at the door and the reality is that they are 5-foot-8, 240 pounds and have not run a mile in years. A background check is not going to help you with that.

People often say to me, "How come you don't want to be CEO of a company?" And I tell them, "I don't want to." I know I can do it, but I don't enjoy it. Why does that have to be the definition of success?

Twitter is not a technology. It's a conversation and it's happening with or without you.

Companies need connections to their markets to create long-term loyalty.

Then they show up at the door and the reality is that they are 5-foot-8, 240 pounds and have not run a mile in years. A background check is not going to help you with that.

If the ad is bad people get turned off. That's 125 million potential viewers, so you just killed reach. But there's also a big potential payoff. I think it does pay off because you get a lot of traffic, a lot of free public relations(in media stories). It helps position themselves for the next round of financing.

It's the same reason why someone has a Web page or why people feel comfortable going on reality TV.