If you haven't yet discovered Backspace--The Writer's Place--you're missing out on a valuable resource.
You can find it at www.bksp.org. The website features articles, guest speakers and forums. A lot of the material is available for free or you can join for $30. They'll even give you a five-day trial membership.
In my opinion, the most useful thing on the website is the series of three articles by New York agent, Richard Curtis. The series is entitled "Publishing in the Twenty-First Century," and there is a link to it on the Backspace home page. I first read the articles in March, 2005 and was blown away by them. They should be required reading for any beginning writer.
Just consider them Christmas in October.