Google realized that too many marketers was beginning to game the Google search engine, and it was taking money out of the “under the table” Google marketers, so Google had to make some changes. Google recently declares that it is the unique, quality content that ranks and nothing less.
One of the latest Google updates is Google Author Rank. This update came after the post penguin and panda Google updates. Similar to page rank, Google uses author rank to position website’s within the Google SERP. This is just one small part of the at large Google Algorithm. The difference is that page rank is based on the quality of web page where as author rank is defined to identify the authority of blogger.