It has always been Google’s goal to provide the best results when using their search engine. The Google algorithm has been finely tuned to look for the most up-to-date, high quality, and relevant sources on the web to fit the needs of enthusiastic searchers.
However, Google’s efforts to provide high-quality results were often thwarted by sites that used 'canned content', or content that has been published before. Content farms can produce search-engine-optimized websites at a fraction of the cost due to the reuse of general content. With cost-efficiency and built-in rankings, the popularity of these sites, at the time, was extremely popular. But, all that has changed with the power of content marketing.