#JitsiMeet is an open source video conference service which is extremely easy to use.
There's no registration, just make up the name of a room and share the link with whoever you want to talk to. (You can also password-protect the room if you want.)
The website is at:
There are also apps available for Android and iOS, links at the bottom of the website.
@switchingsocial I remembered that Snowden used Jitsi during his presentation about the refugees that sheltered him in Hong Kong at 34C3 (the 34th CCC).
mastodon.at is a microblogging site that federates with most instances on the Fediverse.