!fediverse
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
And this ties into people asking for things like "is there a way to LIST what communities an instance has?" On an app by app basis, because as the other user said - this whole "we're in this together" thing with the federation idea isn't really clicking.