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The Fediverse
(links.hackliberty.org)
A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, KBin, etc).
If you wanted to get help with moderating your own community then head over to !moderators@lemmy.world!
Learn more at these websites: Join The Fediverse Wiki, Fediverse.info, Wikipedia Page, The Federation Info (Stats), FediDB (Stats), Sub Rehab (Reddit Migration), Search Lemmy
It literally started in 2010, almost six years before Mastodon.
If you're looking for something that is to Facebook what Bluesky is to pre-Musk Twitter, it doesn't exist.
Otherwise, "the Facebook ones" are: