Home › Certified WooRank Experts Which of the following is not one of four pillars of content marketing? By · Tuesday, December 13, 2016 Which of the following is not one of four pillars of content marketing? A) Native ads B) Social C) Content D) SEO Answer: A Certified WooRank Experts GA Gaurav Arora, Digital Media Lead. 10+ years running paid media and tracking for brands in the USA, UK and Canada.