Young tech nerds in Seattle are trying to preserve the mysterious machines — many of them almost lost forever — that made America's landline telephone system work before the age of computers.

Now that Elon Musk owns Twitter, some of the social network's users are looking for alternatives. One that's ballooned in the past two weeks is Mastodon.

Social network MeWe began as a privacy-focused alternative to Facebook. Trump supporters and right-wing groups disillusioned with mainstream social media have flocked to it since the Jan. 6 riot.

The social network referred its decision to revoke the former president's posting privileges to its Oversight Board, an independent panel of experts.

The president-elect's transition team is pushing back against Twitter's decision, which is a reversal from the last presidential transition.

It's called "fleets." Users can share text, images and tweets that disappear after 24 hours.

Facebook critics are banding together to monitor misinformation, hate speech and voter suppression on the social network because, they argue, it has fallen short.