To get a foot in the door.
1. find someone with musical ability to either work with you as a co-writer 50/50 or hire someone to demo your song on a for hire basis. Tigar Bell (Ricky Van Sheltons Band Member) out of Nashville has this service. He is honest and does a very good job on a for hire basis.
2After you have a good demo, get the book "Songwriters resorces" from your local libarary. Every ligit publisher is listed along with the type of songs the specialize in and the contact information. Follow the instructions in the book very carefully.Its simple once you have something to send them.
The toughest part is getting everything ready. Its going to cost a little. How much depends on how well you do your demo.

The book will explain the rest!!
Good luck

Rob


Robert