Increasingly, I'm inspired by entrepreneurs who run nonprofit organizations that fund themselves, or for-profit organizations that achieve social missions while turning a profit.

I'm not nearly as well organized as I would like. I am a creature of to-do lists and calendars - if something doesn't get onto my Google Calendar, I don't show up for it.

The wider world is a click away, but whether we mean to or not, we're usually filtering it out.

If we need simple narratives so people can amplify and spread them, are we forced to engage only with the simplest of problems?

It's fine to have social media that connects us with old friends, but we need tools that help us discover new people as well.

The uptake on mobile phones in Africa is phenomenal.

When I was growing up in the U.S. in the 1970s, 35-40% of an average nightly newscast focused on international stories.