Directory submissions are the affordable search engine optimization (SEO) method of choice for thousands of internet business owners across the planet. If you've spent any amount of time looking for affordable website promotion, you've likely come across webmaster forums or blogs boasting about the benefits of directory submissions.Directory submission is an important element of making your website more approachable on the Net. A directory is an Internet resource of related links that could have useful information for the user. Directories were in vogue long before search engines happened. Despite the preference for search engines, directories retain their popularity.