By frequency of article marketing, we mean how often do you write articles. The answer is plain and simple. Write as often as you possibly can. It sounds like a lot of work and truthfully, it is. But then that is the price you pay for success. The best comparison between article marketing and a big consumer products making giant company putting television advertisements. If you offer the company the choice to put either one ad or a hundred ads and offer them the same price for either choice, then it is obvious that the company would choose the latter, since the price is the same. The reason is that the basic principle of advertising is repeating the same mantra over and over again to cajole and convince the customer to purchase their goods and services. This basic principle of advertising makes the premise that people tend to maintain short term memory when it comes to messages in advertisements. Well, articles in an article marketing campaign simply are the messages that tend to remain for a very short period in the minds of people and hence need to be repeated several times to take effect. And best of all, article marketing is generally free nowadays with a lot of article directories, although there are some that charge a fee. Hence you need to take advantage of the free article directories and write articles as often as you possibly can in order to make your article marketing campaign a successful one. There is no point in writing an article here and there because the retention level in people is very low and hence the more articles you write the better off you are. Therefore the answer to the question of what the optimum article writing frequency is to write as frequently as as possible.