Building and maintaining a professional network has become quite easy due to internet. Linkedin.com is the site I use. Before Linkedin, networking was mostly happening through distribution lists created on available public mailing groups. It was difficult to keep track of changes in network. Linkedin solved the problem by providing an ability to maintain professional profile and make it visible to your professional network.
Linkedin Website is simple and easy to use and offers variety of features.
LinkedIn has become a success as it served a very simple but powerful need of time. If you are not using Linkedin, I would highly recommend that it is time you started using it. Go to the link provided below and start building your network.
As you continue to build network you can watch changes happening to your network, when people change jobs or get promoted etc. You should see benefits yourself.
Links: http://www.linkedin.com/
