How to determine a good directory?

[yamamura]

There are many factors to consider whether to submit your Website to a specific directory. Is the directory being indexed by search engines? Does the directory focus on your industry? You must look at the directory and ask yourself if you would use it. If yes, chances are the search engines feel the same way.
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[mantrais593]

Check this directory page rank and Alexa rank... Check total incoming links to this directory... Check Outbound link from particular category where you want to submit your website... and many other factors..