BlogRolling.Com “provides a free, easy to use service to manage your buddy lists on your blog that works with every major blog tool and website.” The idea is apparently that people using some blogging tools have to go in and manually edit their templates to add or delete sites that they link to on sidebars.
This sort of feature is easy to do with Conversant. My list of links on the right is just another message in the database. When I am logged in as the site administrator, the system provides administrative links that other visitors and members never see. For example, this is how the bottom of my list of links looks,

Clicking on edit brings up my list of links in a form where I can add or delete to my heart’s content.

