Due to the death of many of the ancient ways of promotion (direct link exchange, check-in directories, etc.), and the use of search engines ranking and new mechanisms for extradition, this simple seo-optimizer increasingly difficult to work and earn money, to buy bread. It would develop a theme of promotion of the site by placing articles. Perhaps, many have already heard about it, and many times in many forums and blogs, but still, it is necessary to summarize it all. Okay, adding the material with its links to the resource, we kill two birds with one stone: first, it certainly affects the increase in belly-yardsticks (Tietz and PR), and secondly, if the article amusing, links to them may cause a certain amount of visitors, with the target. Links, surrounded by content, are very valuable in the eyes of search engines, they are considered thematic your resources, naturally we are moving through this keyword. For posting a lot of ways: free article directories, specialized exchange exchange resources for paid placement (seozavr), you can also arrange or pay for a place in the article on the forums, personally, by mail, etc. So with this as you can see, no problem. As to the articles themselves. It is desirable to publish at each site (either catalog or market share), unique content. It is natural to write 100-200 articles very boring, but then we come to the aid of copywriters, reraytery etc. You can also do it to copy software products (sinonimayzery), etc. I often do this: write one article, breaking it into logical paragraphs, since I do rewrite it, every part of the new words and phrases, the main passages that would have saved their meaning. I write copies of 6.8, then take part of various articles and get a new one, this method is easy to develop a good number of widely read articles. The uniqueness of the texts will avoid the "pasting", ie Search Engine would see the same stuff on different resources as one, Tits, and C, we do not add. In each case the material put no more than three links to your site. The same would be nice if links are not only at home but also on internal partitions, so we will increase PR for internal pages. Be sure to drink your keywords when writing content, remember: do not overdo it - I think, no more than 5% of the total material.