WordPress can host your plugin
You've got a cool new plugin and are hoping to give it some exposure. You're in the right place. Just ask us to host it for you. You'll be able to:
Keep track of how many people have downloaded it. Let people leave comments about your plugin. Get your plugin rated against all the other cool WordPress plugins. Give your plugin lots of exposure in this centralized repository.
There are only a few restrictions
Your plugin must be GPL Compatible. It can't do anything illegal, or be morally offensive (that's subjective, we know). You have to actually use the subversion repository we give you in order for your pluign to show up on this site :). The WordPress Plugins Directory is a hosting site, not a listing site.
It's pretty simple
Sign up. Within some vaguely defined amount of time, some one will approve your request. You'll then have access to a Subversion Repository where you'll store your plugin. Once you put your plugin (and a readme file!) in that repository, it will shortly be automatically entered into the plugins browser.
Readme files
To make your entry in the plugin browser most useful, each plugin should have a readme file named readme.txt that adheres to the WordPress/bbPress plugin readme file standard. You can put your readme file through the readme validator to check it.
Mowser