Looking for Free Directory Listings Format Ideas

I am in the "idea stage" of planning the new and improved Free Directory Listings reviews format. I like the "review" aspect of my listings, but I want to make it database driven so you can display the information in a variety of helpful formats.

So far, I think you should be able to view/sort the free directories in the following ways:

1. Alphabetical
2. Newest/oldest first order
3. Home page PageRank order
4. Typical interior PageRank order
5. Reciprocal link required = Yes/no
6. Deep linking allowed
7. Back links indexed by search engine
8. Length of time to expect for inclusion (this would also show ones that haven't listed me)
9. Duds
10. Search function
11. Some sort of rating system??
12. Classic/legacy/original format (order I reviewed the directories)

Maybe I should optionally incorporate the Paid Directory Listings into the mix. Should I add the "strength" figures that other lists show, like the link pop and page saturation by search engine? What else should I include to make this the best "Directory of Directories"?

Your thoughts and suggestions would be greatly appreciated. Please add your comments below, email me by clicking on my name or via my contact form.

I have added 4 new reviews to the my directory listings, so get to work submitting!! ;-)

martin