Internet directories are the primary structures of the entire network. This is understandable – even at the dawn of the Internet is searched in directories links to sites with relevant information. But over time, when the search system (Yandex, Google, Rambler and others), the value of the directory has decreased, since the search began to take place automatically. However, catalogs are still in favor of developing sites and sites with relatively low ranking – directory makes it possible to get a link even to quite unknown site. For the convenience of online catalog are in accordance with Article thematically. That is a separate item is usually attached to a particular category, although it is sometimes possible to attach an article to multiple headings. Articles Directory is available to any Internet user and to a greater extent performs the function of informing, as there is going to many useful and interesting articles that allow to visit the source site. The catalog is also in the fact that anyone with desire can make any article here, and it will be available to all Internet users.

Catalogues are classified by their coverage of topics. They can be thematic, that is strictly devoted to a topic that does not contain abstract articles and obschetematicheskimi – which include articles of any subject. Catalogues can be classified as the following four broad groups: closed-end catalogs. Here, the addition of links to sites conducting only the moderator, which ultimately ensures high quality proposed materials. Catalogue white.

Registration in this directory does not require the placement of backlink webmaster, and if you make a reference to the white catalog, the page describing the site, automatically takes a higher rank in comparison with standard references. It turns out that to put links to webmaster profitable, although neobyazatelno.Katalog gray. This requires placing a backward link to fail, and to link need to apply for the installation site in katalog.Katalog black. Necessarily located at the back reference used by the directory and return only the directory is set the link to your site – through a redirect.