As The Don (Trump) has always said, of whom I am a fan, "There is no such thing as too much advertising."
Facebook, Myspace, Twitter, Yahoo Answers, etc. Get into as many alleys as you can, network friends of friends, leave your facebook open when posting your hubs on your wall so it's not just your friends seeing them.
Open a blog, search out networks on Google searches, learn to market yourself because in this business if you don't do it for yourself, no one will unless you hire an agent. Do your own footwork. It's way more fun.
Oh, and answer questions here. Ask questions, get involved in the forums. :)