It has been more than a year since Google launched the infamous Panda algorithmic update on February 22nd, 2011. The goal of this algorithm is to reduce rankings of low quality sites, content mills and sites that don’t generate enough value or user interest. Prior to Panda, web search was largely being dominated by content factories who would churn out content just for the sake of gaining higher ranks on Google search results.
Google had to do something about this because if a large amount of low quality sites show up on the first page, it creates a very bad user experience. Hence, Panda was launched to target content farms and spam sites who produce or spin articles in bulk. This update in an ongoing update and it is being run at regular intervals, to ensure that spam sites are kept at bay and worthy content get the rank they deserve.
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