- 100 FREE ARTICLE WRITING TIPS there are additional dimensions to article marketing online. Most notable among the differences is the use of articles for search engine optimization. Articles are written to target particular keyword niches, and distributed to content publishers that cater to those markets. Authors are able to target their audience with informative content, sent to an already-interested group of readers. Many online article marketers enjoy the low cost of this type of advertising and so have written hundreds and sometimes thousands of articles. One online article writer has written 12,900 articles. These prolific article authors also enjoy abundant backlinks (i.e., links pointing back to the business' website). When the articles are distributed via RSS, the exposure to the authoring business and number of backlinks is increased greatly.