mastodon.online is one of the many independent Mastodon servers you can use to participate in the fediverse.
A newer server operated by the Mastodon gGmbH non-profit

Server stats:

11K
active users

Mentioned the @Discourse #activitypub plugin in today's #Dweb meeting.

The plan is to support federation between Discourse instances!

allow Discourse categories to follow external actors
* this would enable AP content to be synced to a Discourse category, this includes Discourse-to-Discourse syncing via ActivityPub, i.e. a category in Discourse site A can follow a category in Discourse site B (where both sites have the plugin enabled and configured as appropriate)

meta.discourse.org/t/activityp

Discourse Meta · ActivityPub PluginJust to let you guys know, we just merged the PR that allows a Discourse category to follow any actor in the fediverse, including other Discourse categories. Yes, that means you can now federate a category between two (or three, or more) Discourses. There’s a few more PRs in the pipeline as part of this phase, but that was a big one. Here’s a video me federating across two Discourse instances and a Mastodon instance running on my computer
Phil

@boris @Discourse Seems like it could be a big deal, federating Discourse.

From what I’ve seen, forum platforms tend to produce much richer conversations than “tweet format” platforms. But forums quickly become walled gardens.