We must remember that great cities have souls. Think of what they are known for: Paris, for art. New Orleans, for music. San Francisco, for high tech. What is so promising about social networking is that in the future, we’ll be able to connect more people with each other around these aspects of cities while we are in them—or away from them. Finally, we should consider that the future of competition is between cities, whereas it used to be between nations. Many people today identify themselves as what city they are from, versus what country. If cities do not work to become smarter, in all aspects of the word, they will lose the competition for visitors, industries, and revenues.