You can submit your content to http://www.magnetmix.com , which is a website that promotes content for download. (I personally have an old old game I wrote, available as the last link at http://www.magnetmix.com/games.shtml .)

We are experimenting with easy ways to have LimeWire allow you to send an email to a friend, allowing them to retrieve something directly from you (which would be useful for things such as this). The download would occur within LimeWire, so eventually the file would spread through the network and won't always be served solely from your machine.