One of the factors that affect rankings in search engines is the quantity and quality of inbound links to your site. One of the most effective tools for building a reference mass of the site are so-called. Exchange links. Number of users of such systems is constantly growing.

As for tangible effect must be sufficiently large number of external links (from several tens to several thousand), need a tool to automate their deployment. Exchange options are an alternative to manual exchange ssylkami.Stoimost of a link depends on the settings page, which are sold here and can vary from one cent to several hundred dollars a month. These parameters are:

* Nesting level page (home, 2 nd, 3rd, etc.)
* Topical index citation Site (CY)
* Google PageRank page placement
* The number of outbound links from a page
* Quality of the page and site in general
* Subject Site
* Age of domain
* The presence of filters superimposed on the search engines
* Quality of site for posting links (higher to the top, surrounded by other links, etc.)
* Availability of site in directories DMOZ, YACA
* Level domain
* Zone domain

The price of a link determines the webmaster with the above parameters. Optimizers buying links from sites on the most suitable for them cost.