People do SEO to get SERP rank and the motive for improving SERP rank is nothing but getting quality and targeted traffic.the more targeted traffic will have in your website the better change to sell your services/products. Article Marketing is one of the way to get Backlinks and to get targeted traffics fast. So, finally we should say that its really necessary.
People do SEO to rank there site in search engines. There are many tools to rank sites but an effective and good tool is that to publish articles. Link of article is permanent and it provide weight to sites.
Article should be fresh and has information about your product or service. It should contains Keywords and site link.