Pew Research CenterNovember 27, 2017

Facebook defends advertising ‘principles’ after Russia, discrimination

USA Today

Pew Research CenterApril 18, 2017

Zuckerberg: We’re responsible for halting violent content on Facebook

USA Today

Pew Research CenterNovember 16, 2016

Twitter suspends alt-right accounts

USA Today

Pew Research CenterJune 5, 2014

Twitter Buys Mobile Ad Startup Namo Media

USA Today