Read about blogs
This is actually how I got better results when I submit my blog to blog directories. I also learned that it wasn't actually the directory list that gave me more hits on my site. There remains some contention with regard to how many directories is the right number to submit my blog to. Opinions range from the modest to the outlandish, with some people of the thinking that I should submit my blog to as many different blog directories as I could manage. As is the norm in the industry, it appears that submission to 10 blog directories or even less is sufficient.