What sort of directories should we be focusing on for the best use of marketing? I mean should we just submit to all we find or focus on certain ones?

A link anywhere is good. I would first and foremost get listed in http://dmoz.org. It's not easy getting in, but once you do you get a link and thousands of sites that use the data.

 

Years ago a Yahoo listing was worth a lot. The goal back then of every webmaster was to get in the Yahoo directory. While it still generates a nice amount of traffic for the sites I have in it it's no where near what it used to be.

 

After those 2 concentrate on getting in directories that are specific to your topic. Instead of submitting to every where target sites similiar as your own.

I have never been able to get on DMOZ :(

Years ago a Yahoo listing worth much. The goal at that time was to get every webmaster in the Yahoo directory. At the same time generating a lot of traffic for sites that I have that is no where near what used to be.