The way to increase external reference profile promoted website using specialized software or services. Feedback usually occurs by automatically registering in catalogs sites, posting prepared comments in forums and guest books.

Running can be either paid or free, depending on the chosen method of its execution.

When using run to build reference mass you need to be prepared for the negative consequences: as a result of uncontrolled placement backlinks on resources that may have a low level authority and do not match by subject with an advanced site, you can please under search engines, closely following such actions.