The small-world networks first discovered by Duncan Watts and Steve Strogatz, as well as another kind of networks that are close relatives, appear to be pervasive in both nature and human society. The World Wide Web has now well over one million pages, and yet it does not take forever to get from one to another – a few clicks usually suffice, for the very same reason that it takes only six handshakes to go between any two people on our planet. There is a kind of the innate intelligence in these networks structures, almost as if they had been finely crafted and laid out by the hand of some divine architect. Scientists are only beginning to understand where this intelligence comes from, how it can arise quite naturally, and most of all, how we might learn from it.