Depending on what you want to market, articles will play an important part for getting you the right traffic and business.

If you are doing baby care products, then you may want to have baby articles to complement your site like Child Care articles.

Or if you are dealing with Travel Vacation, article relating to travel like San Francisco Vacation will be helpful to you.

When dealing with gaming like tennis, then you will be looking at article like Tennis.

So, for internet marketing point of view, depending what your business is about, you will need to have articles to complement it.