Article - "Winning the game of networking". It appeared in today's AM NY - a free paper distributed in NYC. There are two old saying to remember when you think about networking: Fix your roof when the sun is shining; and The best time to look for a job is when you have one.
Here is the link to the article - http://tinyurl.com/clk7fc
P.S. Make sure to get out to Meetup events. Meetup.com is a great way to expand your network by meeting face-to-face with others.