I have been using this script for over a year to manage thousands of links, using four different installs for four different subjects. Easy to install and use and very flexible too. With a little PHP and HTML, I easily adjusted it for new fields as needed. I use my own script for showing the links and it all works very well together. Only small problem is it won’t always collapse the categories in admin, but maybe I broke that myself. A real time saver and a keeper!