There are hundreds, maybe thousands of free directories on the internet, and you can use them to easily market your site for free.
Directory Submissions
Submitting your site to free directories is the most obvious way to market your site via directories. Of course, there are several rules you should follow when submitting your site, if you want it to be accepted. Here are the most common site requirements:
1: Quality site. Meaning no adsense, porn, hate, or scraper sites allowed. Unique content is a must.
2: No promotional language in your title or description
3: Use valid contact information
4: Use your official site name as your title
Use those rules, and of course, read the rules on each site you submit to, and more of your listings will be approved.
Are paid submissions worth it?
With the exception of perhaps Yahoo, I do not believe so. The increase in link quality is just not worth the expense, in my opinion.
Directory Marketing by owning your own directory
There are several free scripts available that allow you to run your own internet directory. The most common script is PHP Link Directory. It...