I wrote at the end of October about the latest Google Page Rank Update and its effects on many well known websites. Google declared its opposition to sites that sell paid links several months ago – yes, paid links are the mainstay of Google’s business but they do not like other people to make money from paid links. When the page rank update took effect the loss of page rank was damaging to a number of high profile respected websites. For my own businesses I noticed that several of my websites and blogs gained their first page rank or had an increased page rank update. Google states clearly that page rank is decided by a complex algorithm that balances the quality of the website content with its popularity. Popularity is measured by a mix of inbound links, readership and numerous other SEO factors. So how did the Google algorithm measure the page rank of a Dog Health Tips site as PR 4 one day in October, and Page Rank 0 a few days later? Google deny that they were targeting sites that were selling text links, but there is no other explanation for these page rank reductions.