US president buys ads on Facebook accusing Twitter of trying to stifle him; Democratic rival asks supporters to sign petition calling on Facebook to remove inaccurate statements

Auditors express particular alarm at media giant's reluctance to act on Trump posts that 'allowed the propagation of hate/violent speech' and 'facilitated voter suppression'

Facebook 'has allowed some of the worst elements of society into our homes and our lives,' says Jonathan Greenblatt as social network continue to tolerate Holocaust denial on site

Social media giant follows Twitter's lead in policing content on platform, especially for election-related misinformation

ADL chief says social media giant has 'repeatedly failed' to act against bigotry on its platform; NAACP head: Zuckerberg profits from 'suppression' of black voters

Social media giant launches online Voting Information Center ahead of US election; Zuckerberg on presidential posts: 'I think we should maintain as open a platform as possible'

Chan-Zuckerberg Initiative donates $450,000 to help find a therapy for Usher 1F Syndrome, a rare degenerative condition that causes blindness and deafness

In move seemingly aimed at quelling internal uproar, Facebook chief tells employees the company will look at its 'policies allowing discussion and threats of state use of force'

Social media giant says deleted around 190 accounts, also on Instagram, tied to right-wing extremists the Proud Boys and the American Guard

Several Facebook engineers resign in protest over company's refusal to take action on posts by US President that spread misinformation; social media chief not backing down