Networking is an old, perhaps ancient way of improving your life and career. One of the best ways to find continual success is to form a web of friends and colleagues that you can rely on when the need arises. It is important to remember that this type of networking is a two-way street, and this guide also addresses ways readers can reach out to and help their contacts. This guide also discusses the differences between our social and professional networks and suggests ways to avoid professional pitfalls online. Sidebars offer additional information and help readers grasp the importance of a strong professional network.