Always be networking! Network online and search for networks you are familiar with, depending on your profession. Use the following sites for researching and networking with business professionals, including companies and their employees:
Join groups on Facebook, Yahoo Groups and LinkedIn and go onto Meetup.com, Eventful.com, and EventBrite.com to find groups related to your profession and network with those people. Tweet about the networking events on Twitter to get the word out there for others!