Whether you write it or pay someone else to write it, the purpose of writing articles for marketing is to generate or improve sales and subscription rates. If you have a product that is released on a regular basis, you would prefer to have a steady base of subscribers rather than relying totally upon individual sales each time you have a new release available. Article marketing is an efficient method of attracting subscribers and allows you to build a targeted customer base. This allows for more consistent planning.
Once you have a subscriber base, it is important to keep them happy and interested in what you are doing. Subscribers tend to be loyal if you give them quality content on a regular basis, otherwise they loose interest fairly quickly. By giving subscribers something free on a regular basis, that is available only to your subscribers, this allows you to maintain contact and good customer relations. It also affords you the opportunity to introduce new offers, advise them of changes to existing products or policies as well as alert them to changes in your business that may affect them. Article marketing is an effective way to accomplish this.
However, it does not stop there. Should the visitor consider that your article is of sufficient merit to warrant them using it as content on their own website, they are entitled to copy it so long as they include your name as author, and your author's resource box, complete with webpage URL. You then get a one way link back from all the sites that use your article, and also visitors that click on your link from these sites.
Just because you have taken steps to try to keep your existing customers, does not mean that you can ignore the possibility of gaining new customers. Use article marketing to entice new customers with a free gift or reward for subscribing to your web site or service. This is a good way to let them know you value their business and want to reward them for their support. Free articles are great for promotions and are very effective for the cost. These articles can promote your products while also providing useful and valuable information to your subscribers. It's a great tool that you should definitely consider.