New research shows that antisemitic posts surged as the ‘free speech absolutist’ took over the social media giant. And it has settled at a higher level since.

The evidence on whether TikTok poses a risk to users’ privacy and security.

Online communities thrive thanks to volunteer content moderators. New research identifies what drives them to quit.

Twitter and Meta are looking to make money from protecting users’ identities. This raises questions about collective security, people understanding what they’re paying for and who remains vulnerable.

Signalling theory tells us lots about the way paid-for verification has disrupted the blue tick system.

An MIT-led study reveals a core tension between the impulse to share news and to think about whether it is true.

Researchers from the University of Cambridge have analysed more than 800,000 tweets and found that negative emotions expressed about geoengineering – the idea

Justices are weighing the arguments in two cases that have the potential of changing the way social media platforms operate.

Here are the trends on the cusp of transforming the online world.