SEO is moving toward a more inclusive strategy that goes beyond new ways of link building or content marketing. Links, keywords, content and site optimization remain the building blocks of SEO, the columns on which the edifice is being built are taking on a different appearance.
Here are the four pillars:
#RankBrain
#Accelerated Mobile Pages (AMP)
#The Knowledge Graph & rich answers
#Real-time, integrated penalty filters
Read more at http://searchengineland.com/four-pillar ... seo-259590