It's becoming clear that the world is listening, so now we're trying to get new groups of people talking.

Talking about 'stopping globalization' is unrealistic - and probably not what anti-globalization protesters actually want.

Twitter is my main tool for ensuring news balance.

People who know me well have learned to insist that I commit to obligations by opening my laptop and putting them onto the appropriate calendar or list - a verbal agreement and a promise to remember won't work.

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.

I fear that I can no longer travel without technology. Twenty years ago, I loved getting on a bus in West Africa and taking off for a city I'd never been to before, relying on advice from out-of-date travel books and fellow passengers on the bus. Now, I end up using TripAdvisor, Yelp, and Google Maps. I probably eat and sleep better when I'm on the road, but I miss the mystery of travel when it was more random and unpredictable.

[According to Twitter] 24 percent of American Twitter users are African-American. That's about twice as high as African-Americans are represented in the population.