العفو ياصديقي لاتنسي الاشتراك في قناتنا علي يوتيوب لتستفيد بقدر اكبر من المعلومات In February 2011, Google announced the Panda update, which penalizes Web-sites that contains articles duplicated from other websites and resources. Historically websites have copied content from each other and benefited in search engine rankings by engaging With https://rsac.org