Last year, a Facebook page administrator put out a clarion call for new followers: They were looking for “the good ole boys and girls from the south who believe in white [supremacy].” The page — named Southern Brotherhood — was live on Tuesday afternoon and riddled with photos of swastikas and expressions of white power.

Facebook has long banned content referencing white nationalism. But a plethora of hate groups still populate the site, and the company boosts its revenue by running ads on searches for these pages.

A new report from the Tech Transparency Project, a nonprofit tech watchdog, found 119 Facebook pages and 20 Facebook groups associated with white supremacy organizations. Of 226 groups identified as white-supremacist organizations by the Anti-Defamation League, the Southern Poverty Law Center, and a leaked version of Facebook’s dangerous organizations and individuals list, more than a third have a presence on the platform, according to the study. ...