Facebook doesn’t just want world domination: it needs it

In many ways Facebook is a very American success: forged at Harvard, warmed up in the crucible of Silicon Valley, and now reaching boiling point by becoming one of the nation’s most valuable companies. But it’s also a very international business, too, with 900 million users spread all around the world. The company has made no secret of its ambition to make sure every person on the planet is connected to its service. What might seem like hubris, however, is actually necessity: with Wall Street now breathing down its neck, overseas growth is important — investors want to see that however big it has become, Facebook still has headroom left. So how will it manage?