Do some research
Are there certain companies that you'd love to work for? Make a list and begin calling them to see if they are hiring. Also browse the classifieds in your local paper for job openings that interest you. Find out what the company does, their mission, some history, and anything else that could help you decide if you'd like to work there. And don't forget the Internet: you can find out about many potential employers and job openings faster than you can say, "I quit!"

Set up informational interviews
Okay, so you've read a few books and figured out what field you'd like to explore. Do you know people who work in this field? If so, talk with them about what they do and how they got there, ask for recommendations, and don't leave without getting a few names and numbers of others who work in the field. This type of networking can be a very effective way of making connections with people or organizations that may be able to hook you up with possible job opportunities. Even if you don't personally know someone in your desired field, look at agencies or organizations that you'd like to work for. Call and ask if you can speak with someone about what they do. This process is called informational interviewing, and can often lead to job possibilities