How do you make your company a good place to work in general? That's a really really really large and complex set of skills. A lot of it is on the job training, combined with excellent mentorship.

The bigger you get, the harder this gets because the more aggressive the people working for you are.

Most large mistakes in organizational design come from putting the individual ambitions of the people at the top of the organization ahead of the communication paths for the people at the bottom of the organization.

To succeed at selling a losing product, you must develop seriously superior sales techniques. In addition, you have to be massively competitive and incredibly hungry to survive in that environment.

Groupon looked like a very high valuation, but any investment in a great company at any stage is almost always a good investment.

The important thing about mobile is, everybody has a computer in their pocket. The implications of so many people connected to the Internet all the time from the standpoint of education is incredible.

There is no silver bullet. There are always options and the options have consequences.