Simple Directory Listing functions as directory listing system for an Apache HTTP server. In addition to the standard copy/move, rename, delete directories, download, upload, and read/edit capabilities (just to name a few), SDL can work in read-only or full mode and can be limited to manage a single folder. SDL also provides an FTP layer that makes it possible to connect to remote hosts. And, the script offers RSS support so you can monitor changes to directories in your favorite RSS reader.