I feel whatever strategy we work either SEO or Social media, both worthful if you write content for the reader and not for the search engines. Also, one can't completely ignore SEO. Ofcourse in some situations depending on the industry, traffic will be less as the entertainment industry where social media plays a huge role in driving traffic. The main or core of the seo is the selection of keyword prior to our start. We need to select keywords from various tools like google adwords,or moz keyword palnner which has low competition and high search volume.