I started to feel a bit disconnected from our San Francisco office, so we got two big screens with cameras there and here in New York. They’re on all day long, so you just walk by and say: ‘Hey, Pete, what’s up? Can you get Ben?’ It works so well.

—Dennis Crowley of Foursquare on Open Lines of Communication

Facebook does the same. The idea of keeping virtual offices connected via Skype or other video streams is one of the killer apps of broadband. I don’t think of this as communication, but more as “interaction.”