Start your own networking business!
One of the best ways to leverage your network is to start a new business. You can earn money from putting the right people in touch with eachother as a "concierge", or consultant. Think about the types of people you know and what services they are looking for. What products do they need to sell. Do you know how to help them, can you sell yourself as the person who can bring those relationships to them?
It is important to consistantly build these relationship, whether you are running your own business, or working for someone else. Make sure that you make network a part of your everyday responsibilies, making phone calls, sending cards, or a newsletter. Position yourself as the resource that everyone wants to know and a business opportunity will present itself!