New version features caching of pages to lessen database load. New features added often. This is a PHP script that allows you to add the dmoz OPD link indexing capability to your site. Configuration file allows customization of colors and more. It is still fairly new, and check back for updates often.
Suggestions are always welcome.
With Link Conservatory software, users of your site can add, modify, or remove links in a moderated or unmoderated fashion, and outside visitors can suggest links for inclusion in a moderated Conservatory. Users can also be notified by e-mail as new links are added. Since it is open-source, you are free to customize the program to make it unique to your organization. This script uses a text file, not a database. It allows you to add and delete a link with password protection feature.