Here’s a list of ActivityPub services that are not Twitter-like, along with a description of what each service does:
- Pixelfed - image sharing
- Peertube - video sharing
- NodeBB - forums
- Lemmy - forums
- WriteFreely - blog
- Friendica - Facebook-like macroblog
- Hubzilla - macroblog / CMS
- Funkwhale - audio
- ActivityPub for WordPress (Plugin) - CMS
- ActivityPub for Drupal (Plugin) - CMS
- ActivityPub for xwiki (Plugin) - wiki
- ActivityPub for Discourse (Plugin) - forums
- Kbin - forums
- Mbin - forums
- Bookwyrm - book reviews
- Owncast - video streaming
- Pinetta - pins
- Nextcloud - data storage
- Plume - blog
- Castopod - podcasts
- Mobilizion - events
- Flohmarkt - classifieds
- Loops - video sharing
- Gancio - events
- Piefed - forums
- wafrn - Tumblr-like blog
- Lotide - forum / link aggregator
- Postmarks - social bookmarking
- Manyfold - 3D print sharing
- Ghost - CMS
- Brutalinks - link aggregator
There’s a lot more stuff, so let me know what I may have missed.