ProPublica, and in particular this reporter, has been doing a lot of original research on facebook's abuses in the past few years. For instance, they started t

ProPublica, and in particular this reporter, has been doing a lot of original research on facebook's abuses in the past few years. For instance, they started this project to collect facebook ads: https://projects.propublica.org/facebook-ads/ https://projects.propublica.org/facebook-ads/ See also this joint investigation by the New York Times and ProPublica: https://www.nytimes.com/2017/12/20/business/facebook-job-ads.html https://www.nytimes.com/2017/12/20/business/facebook-job-ads...