Link Directories - What Scripts Run Them, What Are Their Footprints?

Can anyone list off some popular link directory scripts? I'm looking to harvest a bunch of them, but since I've never really dealt with them I don't know if there is a never ending list of the scripts used, or if it's like blogging where you have 4 or 5 major scripts and a bunch of little ones?

Thanks to anyone that knows...

PHPLd - or Php linkdirectory is the most common script that is used... search for this on google.

Many many thanks.... "powered by PHP Link Directory"

Time to teach Xrumer how these forms work.