Although many SEO experts do not trust that in free directory submission, I consider it as a great addition to the launched sites to acquire more exposure or optimization advantage. In my opinion, it is essential since it serves to help you attain visibility over the websites. Therefore, overdoing anything will only backfire. Thus, avoid submitting your business site to several different directories as it may cause more harm. However, choose some of the best lists to improve your SEO result that will see enhanced web ranking.