There's a popular concept called "six degrees of separation", which argues that everyone on the planet is connected to every other person on the planet trhough a chain of contacts that has no more than five links. So getting in touch with someone who knows someone who knows someone, you should be able to find your way to anyone.
So there is this book "the rules of networking", Rob Yeung really interesting.
Amazing the comment of Mark Twain, on reading his own obituary: "rumors of my death are greatly exaggerated"...:-)