Through the years I have always had a link directory and at that time I used Bookmarks, a Joomla module which only works with Joomla 1.5 (=stone age) and lately I have upgraded my web hotel with newer versions of php and mysql and that was the final nail in the coffin.
JV-LinkDirectory is used
The new link directory is powered by JV-LinkDirectory, an excellent Joomla module, filled with tons of features.
Add links yourself
You can add interesting links yourself. Feel free to do that but my main interests can be noticed if you browse through the categories I have.