One of the main tools external optimization sites that participate in search promotion.

If you disassemble the name "linkbuilding" on the components "link"(link) and “building” (construction), it will become clear to which process it is applied - building up the external reference profile.

Linkbolding (forming reference mass) initially essentially looks like a reference promotion (many believe that this is the same), but still different from it. Purchase external links through exchanges is not a linkbilling.

This concept is appropriate to use only in the case of creating a natural reference profile - receiving free links from the pages of trust sites, social networks, forums, catalogs sites by interacting with their owners and users.