An article directory is a type of website where people write articles on the different subject and these sites allow for authoring provides personal information about an author, including a link to the author's website. This a famous technique for link building and draw some massive traffic toward your site or blog. Simply write 400 to 600 words a unique article according to your site niche and put your site URL in the author box with anchor text, after directory admin review your article will be published if your content meet their criteria.
There are infinite directories sites on internet, but select them very wisely, because most them use nofollow attribute and some sites have very low PageRank which is not effective SEO point view for your site. So, after a long search, we prepare below the list where we include only dofollow and high page rank article directory in the below list.
DoFollow High PR Article Submission Sites list 2015