Last week, Google rolled out the most recent update to its search algorithm.  As you may already know, Google periodically makes updates to improve search results and user experience.  The latest update (code named “Penguin”) targets websites that are manipulating search engines by using “black hat” tactics such as buying and selling links strictly for SEO purposes.  Although this update is expected to have a larger impact on spam sites, it could affect other sites as well, especially if they have over-optimized content.