Article directories is one of the several types of Search Engine Optimization (SEO), where organizations and individual writers submit their articles which are generally based on certain keywords that are most searched in the World Wide Web. The article directories are also known as online magazines as they store several articles on various topics. Article directories allow organizations to submit such keyword articles that would help the organization’s site to go up in the search results order.

 Most search engines have programs, called a crawler that visits every site to collect information. The crawler searches for every page for links and indexes pages accordingly. Hence keyword articles in the article directories help in linking back to the client’s web page, making the future searches on such keywords favorable for the client. Generally search engine optimized articles are 400-500 words in length and have around 2 to 3 percent of keyword density.

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