https://phys.org/news/2019-03-facebook-ad-targeting-discrimination.html

The changes to Facebook's advertising methods —which generate most of the company's enormous profits—are unprecedented. The social network says it will no longer allow housing, employment or credit ads that target people by age, gender or zip code. Facebook will also limit other targeting options so these ads don't exclude people on the basis of race, ethnicity and other legally protected categories in the U.S., including national origin and sexual orientation.

The social media company is also paying about $5 million to cover plaintiffs' legal fees and other costs.