A New Life Of Seo After Googles Updates
 

Many websites that had quite a good position in the search engine result page saw their rank going down dramatically after the two last Googles updates. Upset website owners tried to pinpoint the origin of the punishment and could not identify any unethical SEO practices. How can you do SEO anymore? In fact, there is nothing to target precisely. The down ranking is not a penalty but simply a tweak in the algorithm that discredits slightly some parameters

Quality content and quality plus authority backlinks are important and effective to get good ranking position in sERP. You should avoid low quality and copied content as well as backlinks.