https://www.theverge.com/2019/2/1/18207285/snopes-facebook-fact-checking-program-exit

Snopes will no longer partner with Facebook as part of the social network’s fact-checking initiative. Facebook began the effort at the end of 2016 — after the US presidential election and as Russia’s social media meddling came into focus — in the hopes of battling back misinformation on the platform. Using data from its fact-checking partners, Facebook would try to inform users about questionable or false “news” stories shared by their friends. Snopes was joined by ABC News, The Associated Press, FactCheck.org, and PolitiFact as fact-checkers.

But Snopes says it is now “evaluating the ramifications and costs of providing third-party fact-checking services, and we want to determine with certainty that our efforts to aid any particular platform are a net positive for our online community, publication, and staff.”