I'm frequently asked about how to go about publishing a game in the United States. The following very good advice was posted to rec.games.board on May 25, 1995.
Article by Stacy Orth
Note that this information is from 1995 and may be painfully out of date by now.
If you want to learn more about game publishing, you may want to contact one or more of the following, if you haven't already.
I recommend a subscription to Playthings magazine to keep on top of Toy Conventions. There are a couple of game conventions, also. The folks at GMA below will send you the info in a free packet. Sometimes Stephen Peek will talk to you and give you great advice on the phone.
Toy Manufacturers of America
FREE Publication: Toy Inventor/Designer Guide
FAX 212-633-1429
Game Inventors of America
(214) 331-4587
Stephen Peek (Author of Game Inventors Handbook)
Game Manufacturers of America
(314) 831-4510
FAX (314) 831-3811