There is hardly any other online marketing tool that is as effective and yet so low-cost as submitting articles are when it comes to generating targeted traffic. Every SEO expert recognizes the importance of writing quality articles and submitting them to the top article directories. These well written articles are not just bringing you free backlinks to your website but also valuable and targeted traffic. The more articles you write and submit, the higher your credibility in that particular subject. This boosts your credibility and makes your site truthful which is so important for you in your niche also when you are promoting your web site.