College is a magic time. Yes, youre young and fickle, but you want to be part of this college experience... Then you graduate from that. You have your first job, moving to a new city.

I think that it will be the mobile technologies, both from the enterprise and the consumer side, where super unicorns will come from. I still believe that social networking in combination with mobile will create opportunities for super unicorns.

For us, whether the market is skewed from a bubble perspective or not really is mitigated by staying focused on what we do best.

Every social network on Earth pitches me, and I say no to nearly every single one of them.

I think there are a lot of companies that are staying private longer. Much more of their growth is happening while they are on the private side. So their valuations are hitting $1 billion while they are still private more often.

When you rest on your laurels is right when you have the risk. It exists for every company, no matter how big.

When I started in the business in 1999 and 2000, we had companies that were going public in two, three or four years.