moshu, a Yellow Pages Directory is not a link directory. Link directories are not nearly as useful. Yellow Pages Directories have full listing information and sometimes include photos, document uploads, and video. They are not simply a link directory.
carloesperat, wordperss software is not just blogging software it is very exceptional blogging software with almost unlimited custom themes available and a large variety of plugins that can have a variety of uses. A Yellow Page Plug In would be pretty cool hu? Sounds pretty complicated though and you can get other script for that. Give me a shout if you want me to recommend something for you.