This is our commitment to users and the people who use our service, is that Facebook's a free service. It's free now. It will always be free. We make money through having advertisements and things like that.

More than four million businesses have Pages on Facebook that they use to have a dialogue with their customers.

Our work to improve privacy continues today.

There are people who are really good managers, people who can manage a big organization, and then there are people who are very analytic or focused on strategy. Those two types don't usually tend to be in the same person. I would put myself much more in the latter camp.

Find that thing you are super passionate about. A lot of founding principles of Facebook are that if people have access to more information and are more connected, it will make the world better; people will have more understanding, more empathy. That’s the guiding principle for me. On hard days, I really just step back, and that’s the thing that keeps me going.

The basis of our partnership strategy and our partnership approach: We build the social technology. They provide the music.

Betting completely on HTML5 is one of the, if not THE biggest strategic mistake we've made.