After searching around on bhw, I can see that Directory Press seems to be a favorite for making directory sites. I've been looking at, Directory Press, businessdirectoryplugin, and http://templatic.com/cms-themes/geo-places-city-directory-wordpress-theme/ They all look good, directory press so far is looking to be the one to use. I'm going to set up directories for local/national niches with the intent of income to come from sign ups and banner advertising. Not sure if free signups and banner advertising is the way to go yet. What do you guys recommend to use for a wp directory.