Page Rank or PR is a general indicator of the importance and the credibility of a particular page of the site. In contrast to the composer, who is appointed by the entire site as a whole, Page Rank is calculated for each page individually, pointing out that even within a single site may be different on the relevance of the page.
We must not forget that the search engine Google uses not just Page Rank to determine the credibility of the sites. This is just one of the options, which exists alongside other equally important factors in ranking.
Increase Page Rank provides many opportunities for webmasters. First of all, it is a realistic chance of breaking into the TOP keyword queries. Also high Page Rank can earn on the pages of the site, placing there sponsored links.
Increase in this indicator has long is not a secret. If you wrote an interesting material, it will be read by your subscribers, bringing information on Internet forums, social networks. You can help your site and make announcements in major bets on networks.
It is worth making a remark. Not all sites-socseti-Microblogs are good for announcements in each individual case. If you put seomaterial in the pikabu, the attendance that day will increase exponentially, but bounce will be virtually the same. And it will be more negative than positive.