A very efficient method to advertise your site, the products you are selling or simply to help you find a better job is writing targeted articles. These articles that enclose at the end a short presentation of you or your business can be about various solution to actual problems, about everyday life ect. There are many articles directories to which you can submit these articles to, or if you have a database of your customers' emails, just drop them an email containing the article and a link to your personal site or professional site.