I run a paid directory. I am looking for some tips on the best ways to promote my site. Could anyone give me some good pointers?

As unpopular as this can be. I have used targeted email blasts.
Nothing comes close the the click thru ability and low cost.
Some people called it spam but heck if honey baked hams can do it so can I.
Just make sure your prospect list is truly qualified.

thanks for the answer, however like you suggested, i would be afraid to many people would feel as if they are being spammed.

Put content in your directory home page and start building backlinks.

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