Giving birth to something that could possibly change the lives of millions of people for possibly decades, hundreds of years, whatever the length of time the run is, is a great feeling.

The challenge when you think about product distribution is: how are you competing for potential customers or potential members time?

If you can get better at your job, you should be an active member of LinkedIn, because LinkedIn should be connecting you to the information, insights and people to be more effective.

Times of economic crises can change what the competitive landscape looks like, because when, for example, you have boom times, capital is easy to come by, growth is easy, sometimes what you focus on is, you know, how to accelerate in the boom. During economic crises, the question is, the companies that come out of, you know, that are sailing through that with the best liquidity, both assets on the balance sheet, making money, ability to grow their businesses, get a disproportionate competitive advantage.

What is an entrepreneur? Someone who jumps off a cliff and builds a plane on the way down.

Entrepreneurship is a life idea, not a strictly business one; a global idea, not a strictly American one.

Social networks do best when they tap into one of the seven deadly sins. Facebook is ego. Zynga is sloth. LinkedIn is greed.