If you have created a Pages in facebook, and wish to have the username appeared in the URL, try this.

Go to >>  http://facebook.com/username

After that click the “Set a Username”

You may then select your preferred username for your pages.

And once done, your pages will have its unique username.

Term & Condition:

1. Your pages required to have at least 25 fans, then only able to set the username.

2. Know from tian chad that, it is not possible to add the .com name for the username.

So, those who have Pages and not yet get the username one, have Fun!! hahaha