My money site that has been live and making money for like six years dropped to page 10 for my main keyword. Traffic is completely gone. I looked around to see if it was another panda update but couldn't find anything. Anyone else experience a similar drop? I noticed my main competitor also got hit but not as much. He dropped back to page 2. I had been mimicking his SEO methods for a while so I think it's not just a random slap on my end. Google definitely made some sort of algorithm change. I haven't done any blackhat SEO on the site since 2010 and it's 100% unique content.