In today's world, "social networking" means sitting behind a computer and racking up your "friends" list.
I suggest you expand your social network in the real world.
At least once a week visit a different fire station and talk to local Firefighters.
Have an idea of the questions you'd like to ask regarding their department, their operations and service area.
This kind of face to face social networking is not only a great way to learn about a fire department and their operations, it will help expand your network of knowledgeable and connected firefighters and help to improve your real world social skills.
It just may open up some new doors for you as well.