I have long been wondering whether its worth starting a directory, or adding one to an existing website. Is it a good idea, especially if its not a general directory, but a niche (compared to a general directory). I am reluctant to use PHPLD as it seems to get the most usage on all the directories I see, I'm guessing in the end this isn't as good for SEO somehow. So I'm looking for a free alternative with similar functions. List Away!