Pagerank - what is it ?
Pagerank(PR) is algorithm used by Google to measure websites importance in the Internet. Every website has pagerank from -1 to 10. -1 means that this page is new to google and hasn't yet viewed this page. Most of websites has PR 3-5. No pagerank checker tool can't see exact PR at the moment, given number is delayed and about 1-2 months old - so you'll be checking back in history, but thats ok. PR is logarithmically raising, every next level is much stronger than the last. That means that getting from 2 PR to 3 PR is much much easier that getting from 4 PR to 5 PR.
