Possible Duplicate:
How to get my software into Ubuntu?
How do I add my software to ubuntu's server so that it is available to others to install and use it
Possible Duplicate:
How to get my software into Ubuntu?
How do I add my software to ubuntu's server so that it is available to others to install and use it
You will want to check out the developer site on ubuntu.com, as it has all the information you will need to get your software added to the Ubuntu repositories. http://developer.ubuntu.com/
You may be looking for Personal Package Archive (PPA). From the help page:
Using a Personal Package Archive (PPA), you can distribute software and updates directly to Ubuntu users. Create your source package, upload it and Launchpad will build binaries and then host them in your own apt repository.
That means Ubuntu users can install your packages in just the same way they install standard Ubuntu packages and they'll automatically receive updates as and when you make them.
Does that answer your question ?