There are many reasons for you to want to market yourself in article form.
For one it an article can establish you as a leader in your field. People will pick up on your articles as they are published on the web, and will remember your brand.
There is a more down to earth reason though, which is that if people publish an article that has keyword rich links back to your website, you will benefit from those links. One article can be published an unlimited amount of time, with each time constituting a one way link.
I have had sites that have gone from a Google page rank of 0 to 4 in three months on the basis of one article submittal.
The important thing as always is that this is an honest procedure. An article must be well informed and to the point, if it is useful it will be picked up by the search engines.
Therefore what we do is research your subject, write an article then submit it to the major article sites.
How long this takes depends on the complexity of the subject, so starting at £150 for a simple article and rising as this increases.