You will submit your article to article directories and as the list of your published articles grow larger, and more and more of them are appearing on different websites, the total number of links to your site increases also. Major search engines are placing a lot of significance on incoming links to websites so they can determine the importance of a certain site.
With your articles submitted and spreading online, there are those who already have specific things they need on their mind but cannot decide yet between the many choices online. Chances are, they may stumble upon one of your articles, gets interested by the contents you wrote, go to your site and became enticed by your promotions. See how easy that is?
Now it is no wonder why many webmasters are suddenly reviving their old writing styles and taking time to write more articles about their site than doing other means of promotion.
The good thing with articles is that you can write about things that people would want to know about. This can be achieved in the lightest mood but professional manner with a little "not-so-obvious" sales pitch added.
With article marketing there is nothing like getting benefits for something you got for free and on top of that you did now use money for advertising.