Pew Research had a January 2014 number of 71% of 'online adults' being on facebook, Statista had 79% of US internet users for April of 2016. http://www.pewinte

Pew Research had a January 2014 number of 71% of 'online adults' being on facebook, Statista had 79% of US internet users for April of 2016. http://www.pewinternet.org/fact-sheets/social-networking-fact-sheet/ http://www.pewinternet.org/fact-sheets/social-networking-fac... https://www.statista.com/statistics/246230/share-of-us-internet-users-who-use-selected-social-networks/ https://www.statista.com/statistics/246230/share-of-us-inter...