1. PageRank is one of numerous methods Google uses to determine the relevance and importance of pages. 2. Google interprets a link from page A to page B as a vote in favor of A B, of course take into account not only the number of votes, but and the quality of the voting pages. 3. PageRank is based on the number of incoming links, but not only on him, the relevance and quality are important too.
4. pr (A) = (a-d) + d (PR (t1) / C (t1) + + pr (tn) / C (tn)). 5. Not all links are equally influenced by PageRank. 6. If a page with PR8 there is only one link, then site to which it refers will receive the entire pr that she can pass, if the links 100 that each link will carry only part of the pr. 7.
Bad incoming links will not affect the pr. 8. In the pr is taken into account the lifetime of the site, relevancy of incoming links and the time of their existence. 9. When calculating the pr content is not taken into account. 10. pr is not calculated for the whole site, and for each page individually. 11. Important part of each link, except for references to