Google is constantly refining it’s search algorithm to improve searcher experience. This time it has cracked down on content farms, who have been putting heaps of duplicate or low quality content on the web. These sites have been showing up for a number of search results. It is very frustrating when we are looking for a product on Google and we come across websites which have just given us theoretical definitions of the product instead of providing us the product or some useful information about where and how to get it. Content farms have been made by people who want to monetise the traffic coming to the website through advertising etc.
Even websites with poor search engine optimisation, which have multiple variants of the same content to get rankings artificially will be impacted as a result of this change, bringing up high quality websites which have quality and unique content.