A fairly young site called DazzlyWorks has recently opened up a feature which lets you add your creations to their site. All you need to do is sign up to the forums, and then upload your creations to your heart's content. Once registered you can go to the upload page and go ahead. If you need help, there's even a tutorial that helps you through uploading files to the site. It's completely free to up- and download the files. Check out DazzlyWorks for more information.