(1) Article directory sites can earn earnings from Google advertisings positioned on the site within the Yahoo AdSense program (www.google.com/adsense). It has stimulated the progress of a large number of look-alike article sites that get hardly any traffic. Others are niche websites that bring articles specifically vertical categories;
(2) Websites can be marketed effectively through articles. A web link to the author's website within each free article assists to: (a) bring targeted prospects by using a well-designed, interesting "signature" or writer bio in the bottom of this article and (b) increase Yahoo PageRank by creating more inbound links to an online site. These links indicate the author's website from the article's occurrence both on this article sites and on web sites that use the free articles.
If you’re a marketer, I can hear your brain beginning to compute wildly:
1000 article sites X 1 link to my site X 15 articles submitted = 15,000 links to my site
Moreover, article distribution tools make article spamming extremely easy. Hold on, it isn't that simple. Submitting your article to hundreds or a huge selection of article sites can in fact damage you, since Yahoo spiders are finely tuned to identify spam in its many tastes. You're far better off to send your article to five of your selected article sites and several niche websites, and resist the temptation to blast your article to every pathetic article site on earth.
To assist you see which sites you may consider submitting to, I've the following the most notable 25 article publication sites by their Google PageRank (10 being high) and Alexa traffic ranking (1 being high). A disclaimer: The Alexa ranks are flawed and seem to be volatile, but provide a relative way of measuring traffic to a niche site. Google PageRank (PR) is notoriously inaccurate, but is seen as an indication of Google's comparative trust in a niche site -- type of. The list is not exhaustive and includes both standard article directories plus some popular niche web directories with an Alexa ranking of under 50,000. Sites are shown in ascending Alexa get ranking order, with the PR 6+ sites boldfaced for your convenience.