Pew Research CenterNovember 1, 2018

How Big Oil dodges Facebook’s new ad transparency rules

ProPublica

Pew Research CenterJune 15, 2018

Facebook’s screening for political ads nabs news sites instead of politicians

ProPublica

Pew Research CenterFebruary 1, 2016

On Wikipedia, Donald Trump reigns and facts are open to debate

The New York Times