Twitter has fallen a very long way from its roots as the place where you went to find out what was happening - and to discuss it. If it's just about an elite telling us their thoughts, does it really matter all?
Reports from Australia make it clear the traffic from Facebook is a thing of the past - and that Zuckerberg never took it seriously in the first place.
Siva Vaidhyanathan, professor of media studies at the University of Virginia and the author of Antisocial Media: How Facebook Disconnects Us and Undermines Democracy, has some compelling theories on how Facebook became whaat it is.
Facebook has community standards. They're just very, very low.
It looks like Apple is killing its venerable photo and photobook printing service this autumn.
Messaging apps are allowing misinformation to spread faster than ever before, and tactical responses aren't working. We need to address this at a societal level, with research and education.