Directory submission service to improve your search engine rankings.web directories is considered a common SEO technique to get back-links for the submitted web site.

Which is mainly used for the purpose of building high quality back links for a website.

up cho bạn, chúc từ khóa lên top, chúc bác bán đắt hàng, hehe

Directory Submission is the process of get backlink.It involves steps of adding website URL with site details into most appropriate category.

Its like an online phone book... it keeps track and organizes website.. falling out of favor now that search engines are so strong. it helps because they link to you in addition to cataloging you, and that acts as a relevancy single and confers some trust to your site.