"It shouldn't be my nonprofit that has to be monitoring and focusing its energy on a corporation that makes $70 billion a year," said Color of Change President Rashad Robinson.
The move comes as civil rights groups call for major advertisers to boycott Facebook, and the Trump administration reportedly proposes legislation on social media platforms.
Without the 1996 law Section 230, the internet as we know it would not exist.
Trump is to order a review of the law that excuses social media platforms from liability for what users post.
The group will decide some of the thorniest issues surrounding hate speech, harassment and privacy.
Google's new policies mean campaigns need to spend more to get their messages out.
Facebook says it is legally required to take down posts in support of sanctioned groups and people. Is it going further than that?
Verizon is selling Tumblr, the social blogging platform.
"You're not really yourself, you're your work self," says New York Times reporter John Herrman about the platform's users.