Hmm.. tough one. Maybe LinkedIn for me.
Adium IM client. I get a lot of requests via IM.
V7N for me, and other forums too.
Steven here, my friends.
Believe in God.
Talk freelance for me.
Linkedin and Twitter
NetBuilders.org, DigitalPoint.Com, MSN
That should be it I guess
I would also say that forums are a great networking tool, especially smaller forums where you can establish a reputation and build credibility. In addition, forums with marketplaces will allow you to forge relationships with new and recurring clients.