CEO Mark Zuckerberg's decision to leave up US president's posts about protests, which were flagged by Twitter, sparks outcry and virtual walkout by company workers

While both companies' CEOs say they are not 'arbiters of truth,' Twitter has added warnings on some recent posts by the president, whereas Facebook left identical remarks alone

Experts express doubts much could be done without an act of Congress, but move could lead to platforms facing lawsuits over content

'We have learnt a lot since 2016,' says social media giant's founder, likening the task to 'arms race' against Russia, Iran and China

A quarter of cash will go to Wilcox Medical Center, the rest to provide food, rental assistance education to those in need on island where couple have a 700-acre estate

Alibaba head Jack Ma vows to donate vast supplies of medical equipment to US, every country in Africa; Zuckerberg says Facebook to provide users with 'authoritative information'

Founder of Facebook, which owns WhatsApp, attacks spyware firm for allegedly hacking the hugely popular instant messaging platform to conduct cyberespionage

PM reportedly asks social media giant's CEO to 'ensure the fairness of the election'; company spokesman says it is 'an open platform for all ideas'

According to Business Insider report, Jewish CEO says he turns to religion when social media giant 'faces challenges' but clarifies God is not his mentor

Massive, coordinated campaign targeted Muslim, left-wing politicians, published over 1,000 fake news posts per week to over 1 million followers, The Guardian reports