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

There are a few other things that I built when I was at Harvard that were kind of smaller versions of Facebook. One such program was this program called Match. People could enter the different courses that they were taking, and see what other courses would be correlated with the courses they are taking.

If Facebook were a country, it would be the 8th most populated in the world, just ahead of Japan.

I like to pride myself on thinking pretty long term, but not that long term.

The unsupervised learning is the way most people will learn in the future. You have this model of how the world works in your head and you're refining it to predict what you think is going to happen in the future.

I actually do think you're seeing this trend towards organizations just caring more about their brand and engaging. And so I think Home Depot will want to humanize itself. I think that's a lot of why companies are starting blogs, are just giving more insight into what's going on with them.

People developed planes first and then took care of flight safety. If people were focused on safety first, no one would ever have built a plane.