Expanded from the thread started by cocococo In an effort to collect actual data and compare information from all sites currently complaining of receiving a hit from the new Google penalty, I have started this thread in hopes that people who were hit will take the time to analyze their website using a useful tool provided by Abstroose. Here is the summary of cocococo's thread: And here is the (summarized) argument against it: And one more useful point: From that point people would give their input. The aim of this thread is to have everybody who has seen a drop in their site use the tool Abstroose has so kindly shown which can check for duplicate content within a site and see if they do have duplicate content. Here is the tool: http://www.siteliner.com/ From that point, we can see for ourselves if these drop in rankings is really because of duplicate content and not a Google update. We just need to gather useful data and draw reasonable conclusions from there. This is very relevant to my interests and I hope many of your will participate. I will begin. None of my sites were affected or have seen significant drops. I have no duplicate content.