I realized that the only way to get into a good college was to be valedictorian or salutatorian. So that was my goal.

Now, as smartphones are coming up, there are all kinds of apps that will start to be developed that will help women.

If you can't travel to the developing world, look at helping to fund a woman with a small loan and follow her. Learn her story. Learn about the difference that you're making.

With economic opportunity, sometimes it's making sure that if they're not in a place where they can have good jobs, that when they have economic opportunity, they have digital tools to use.

It is still just unbelievable to us that diarrhea is one of the leading causes of child deaths in the world.

We [with Bill Gates] started to make decisions about what we'd invest in. Then I actually started traveling for the foundation. I've probably been to India now eight times at least and Africa numerous times.

My background was computer science and business school, so eventually I worked my way up where I was running product groups - development, testing, marketing, user education.