While PageRank (PR) is a patented trademark of Google, MozRank (MR) is provided by SEOmoz. I agree that Google’s toolbar PR does not always show the actual ranking of a page/site due to what you say anti-spam measures initiated by Google. On the other-hand MozRank is much more comprehensive. MozRank takes lots of factors into account including link popularity on major search engines, nofollow links, popularity on blogosphere, wikipedia links, traffic rank etc.
Unfortunately many search engine marketers have become obsessed with PageRank. They think that it is the perfect measuring …

Basically, PageRank is a system of measuring your website’s popularity. This is measured by looking at how many other websites link to yours. It is not necessarily the number that is important, but the quality of the inbound links. However, according to Google, “important pages mean nothing to you if they don’t match your query. So, Google combines PageRank with sophisticated text-matching techniques to find pages that are both important and relevant to your search.”
What does this mean? Well, it means that PageRank is only one of many factors that …