An irregular reminder that calling this place "Mastodon" has a bit similar energy as saying "I just sent you a GMail."
"Fediverse" (or "fedi") is a better term.
Mastodon is just one of many software projects that talk to each other to create this multi-instance social network:
https://axbom.com/fediverse/
(kudos to @axbom for this fantastic infographic!)
There are blogs, Reddit-like communities, video instances and many more, all part of fedi.
@omi @axbom well, @feditips is a good place to start:
https://fedi.tips/