Google PageRank Update

I was pleased to notice that the Google PageRank for my site ( recently jumped up from 3 to 4. According to Google, PageRank reflects their view of how important a web page is. Or, in other words, it’s the relative value of any single page on the internet in relation to every page on the internet. To determine this, they consider more than 500 million variables and 2 billion terms. Understandably, they keep their exact algorithm a secret.