Do you participate in any online forums? This is a great way to network, but you should be cautious and only sign up for forums that are truly legitimate. Sermo is a great forum for physicians. There are other forums out there, like Student Doctor Network. Online forums and blogs are some of the core elements that compose Web 2.0
As the internet becomes more interactive, join social networking sites and participate in forums. You may find some valuable information and also meet some interesting people.
If you're a physician, why don't you join Sermo?