Gancio

A free open source collaborative online calendar. It allows local communities to share a common calendar that anyone can post events to, even people without an account. (Posts are moderated to prevent spam though.) You can also interact with Gancio through the Fediverse, and it has RSS support for people who want to follow through feed readers.

Fediverse address:
@gancio@mastodon.cisti.org

CNRS Terre & Univers

Branch of the French National Centre for Scientific Research specifically looking at planetary science, astronomy, climate change, geology and related fields.

Fediverse address (in French):
@CNRS_INSU@social.numerique.gouv.fr

FediMeteo Portugal

Weather forecast accounts for cities in Portugal. Follow your city to receive its weather forecasts in Portuguese in your timeline.

Fediverse addresses (in Portuguese):
@aveiro@pt.fedimeteo.com
@beja@pt.fedimeteo.com
@braga@pt.fedimeteo.com
@braganca@pt.fedimeteo.com
@castelo_branco@pt.fedimeteo.com
@coimbra@pt.fedimeteo.com
@evora@pt.fedimeteo.com
@faro@pt.fedimeteo.com
@guarda@pt.fedimeteo.com
@leiria@pt.fedimeteo.com
@lisboa@pt.fedimeteo.com
@madeira@pt.fedimeteo.com
@ponta_delgada@pt.fedimeteo.com
@porto@pt.fedimeteo.com
@santarem@pt.fedimeteo.com
@setubal@pt.fedimeteo.com
@viana_do_castelo@pt.fedimeteo.com
@vila_real@pt.fedimeteo.com
@viseu@pt.fedimeteo.com

Wissenschaftlicher Beirat der Bundesregierung Globale Umweltveränderungen / German Advisory Council on Global Change

Indpendent scientific body advising the German Federal Government on the climate crisis and other threats to the planet’s ecosystems.

Fediverse address (in German and English):
@wbgu@social.bund.de

Interzone Magazine

Long-running award-winning science fiction and fantasy magazine founded in 1982, publishing short stories and non-fiction pieces as well as full colour illustrations. It publishes both established and unknown writers, and its past contributors include many luminaries such as Terry Pratchett, Iain M. Banks, Gwyneth Jones, J.G. Ballard, William Gibson etc.

Fediverse address:
@InterzoneMag@mastodon.online

FediMeteo Alaska

Weather forecast accounts for Alaska, USA. Follow an account to see forecasts for that town or city.

Fediverse addresses:
@anchorage__alaska@us.fedimeteo.com
@barrow__alaska@us.fedimeteo.com
@bethel__alaska@us.fedimeteo.com
@dillingham__alaska@us.fedimeteo.com
@fairbanks__alaska@us.fedimeteo.com
@homer__alaska@us.fedimeteo.com
@juneau__alaska@us.fedimeteo.com
@kenai__alaska@us.fedimeteo.com
@ketchikan__alaska@us.fedimeteo.com
@kodiak__alaska@us.fedimeteo.com
@kotzebue__alaska@us.fedimeteo.com
@nome__alaska@us.fedimeteo.com
@palmer__alaska@us.fedimeteo.com
@petersburg__alaska@us.fedimeteo.com
@seward__alaska@us.fedimeteo.com
@sitka__alaska@us.fedimeteo.com
@soldotna__alaska@us.fedimeteo.com
@valdez__alaska@us.fedimeteo.com
@wasilla__alaska@us.fedimeteo.com
@wrangell__alaska@us.fedimeteo.com

FediMeteo Puerto Rico

Weather forecast accounts for Puerto Rico. Follow an account to see forecasts for that town or city.

Fediverse addresses:
@aguadilla__puerto_rico@us.fedimeteo.com
@arecibo__puerto_rico@us.fedimeteo.com
@bayamon__puerto_rico@us.fedimeteo.com
@cabo_rojo__puerto_rico@us.fedimeteo.com
@caguas__puerto_rico@us.fedimeteo.com
@carolina__puerto_rico@us.fedimeteo.com
@humacao__puerto_rico@us.fedimeteo.com
@mayaguez__puerto_rico@us.fedimeteo.com
@ponce__puerto_rico@us.fedimeteo.com
@rio_grande__puerto_rico@us.fedimeteo.com
@san_juan__puerto_rico@us.fedimeteo.com

Internet. Czas działać! (“Internet. Time to act!”)

Polish-language group of activists promoting privacy and user rights on the internet. They also run a podcast and provide lectures and workshops on these topics.

Fediverse address (main, in Polish):
@icd@mastodon.internet-czas-dzialac.pl

Fediverse address (videos, in Polish):
@icd@video.internet-czas-dzialac.pl

FediMeteo Wales

Weather forecast accounts for cities in Wales, using data from Open-Meteo.

Fediverse addresses (organised by city):
@aberystwyth@uk.fedimeteo.com
@bangor@uk.fedimeteo.com
@caernarfon@uk.fedimeteo.com
@cardiff@uk.fedimeteo.com
@carmarthen@uk.fedimeteo.com
@holyhead@uk.fedimeteo.com
@monmouth@uk.fedimeteo.com
@newport@uk.fedimeteo.com
@st_davids@uk.fedimeteo.com
@swansea@uk.fedimeteo.com
@wrexham@uk.fedimeteo.com

Auschwitz Memorial

The memorial and museum at the Auschwitz-Birkenau camp built during the Nazi occupation of Poland. Over a million people were murdered by the Nazis at the camp during the Second World War, most of them civilians including children. The memorial functions as a reminder of what can happen, and campaigns for it never to happen again.

Fediverse address:
@auschwitzmuseum@mastodon.world

Virtual Genealogical Association

International organisation organising online events for genealogists and family history enthusiasts.

Fediverse address:
@VirtualGenealogy@c.im

Bojan

Records ambient sounds in various environments, including natural and human-made, using a high quality field recorder. Highlights sounds we may not always notice consciously.

Fediverse address:
@bojan@mastodon.art

FediMeteo Missouri

Weather forecast accounts for Missouri, USA. Follow an account to see forecasts for that town or city.

Fediverse addresses:
@ballwin__missouri@us.fedimeteo.com
@blue_springs__missouri@us.fedimeteo.com
@branson__missouri@us.fedimeteo.com
@cape_girardeau__missouri@us.fedimeteo.com
@columbia__missouri@us.fedimeteo.com
@florissant__missouri@us.fedimeteo.com
@hannibal__missouri@us.fedimeteo.com
@independence__missouri@us.fedimeteo.com
@jefferson_city__missouri@us.fedimeteo.com
@joplin__missouri@us.fedimeteo.com
@kansas_city__missouri@us.fedimeteo.com
@kirkwood__missouri@us.fedimeteo.com
@lees_summit__missouri@us.fedimeteo.com
@liberty__missouri@us.fedimeteo.com
@maryville__missouri@us.fedimeteo.com
@nevada__missouri@us.fedimeteo.com
@ozark__missouri@us.fedimeteo.com
@poplar_bluff__missouri@us.fedimeteo.com
@raytown__missouri@us.fedimeteo.com
@rolla__missouri@us.fedimeteo.com
@sedalia__missouri@us.fedimeteo.com
@springfield__missouri@us.fedimeteo.com
@st_joseph__missouri@us.fedimeteo.com
@st_louis__missouri@us.fedimeteo.com
@wentzville__missouri@us.fedimeteo.com

FediMeteo Nevada

Weather forecast accounts for the state of Nevada, USA. Follow an account to see forecasts for that town or city.

Fediverse addresses:
@battle_mountain__nevada@us.fedimeteo.com
@boulder_city__nevada@us.fedimeteo.com
@caliente__nevada@us.fedimeteo.com
@carson_city__nevada@us.fedimeteo.com
@elko__nevada@us.fedimeteo.com
@ely__nevada@us.fedimeteo.com
@fallon__nevada@us.fedimeteo.com
@fernley__nevada@us.fedimeteo.com
@gardnerville__nevada@us.fedimeteo.com
@hawthorne__nevada@us.fedimeteo.com
@henderson__nevada@us.fedimeteo.com
@indian_springs__nevada@us.fedimeteo.com
@las_vegas__nevada@us.fedimeteo.com
@laughlin__nevada@us.fedimeteo.com
@lovelock__nevada@us.fedimeteo.com
@mesquite__nevada@us.fedimeteo.com
@north_las_vegas__nevada@us.fedimeteo.com
@overton__nevada@us.fedimeteo.com
@pahrump__nevada@us.fedimeteo.com
@reno__nevada@us.fedimeteo.com
@sparks__nevada@us.fedimeteo.com
@tonopah__nevada@us.fedimeteo.com
@wells__nevada@us.fedimeteo.com
@winnemucca__nevada@us.fedimeteo.com
@yerington__nevada@us.fedimeteo.com

The Small Technology Foundation

Researches, develops and promotes online services designed for human beings rather than corporate profits.

Fediverse address (live streaming):
@fedi@owncast.small-web.org

Fediverse address (co-founder Laura Kalbag):
@laura@mastodon.laurakalbag.com

Fediverse address (co-founder Aral Balkan):
@aral@mastodon.ar.al

FediMeteo Norway

Weather accounts for cities and towns in Norway. Follow an account to see its forecasts in Norwegian.

Fediverse addresses (in Norwegian):
@alesund@no.fedimeteo.com
@alta@no.fedimeteo.com
@arendal@no.fedimeteo.com
@bergen@no.fedimeteo.com
@bodo@no.fedimeteo.com
@drammen@no.fedimeteo.com
@fagernes@no.fedimeteo.com
@flam@no.fedimeteo.com
@fredrikstad@no.fedimeteo.com
@gardermoen@no.fedimeteo.com
@gjovik@no.fedimeteo.com
@hammerfest@no.fedimeteo.com
@harstad@no.fedimeteo.com
@haugesund@no.fedimeteo.com
@horten@no.fedimeteo.com
@kirkenes@no.fedimeteo.com
@kongsberg@no.fedimeteo.com
@kristiansand@no.fedimeteo.com
@larvik@no.fedimeteo.com
@lillehammer@no.fedimeteo.com
@molde@no.fedimeteo.com
@moss@no.fedimeteo.com
@narvik@no.fedimeteo.com
@oslo@no.fedimeteo.com
@porsgrunn@no.fedimeteo.com
@sandefjord@no.fedimeteo.com
@sandnes@no.fedimeteo.com
@skien@no.fedimeteo.com
@stavanger@no.fedimeteo.com
@tonsberg@no.fedimeteo.com
@tromso@no.fedimeteo.com
@trondheim@no.fedimeteo.com
@voss@no.fedimeteo.com

FediMeteo Kansas

Weather forecast accounts for the state of Kansas, USA. Follow an account to see forecasts for that town or city.

Fediverse addresses:
@colby__kansas@us.fedimeteo.com
@derby__kansas@us.fedimeteo.com
@dodge_city__kansas@us.fedimeteo.com
@emporia__kansas@us.fedimeteo.com
@garden_city__kansas@us.fedimeteo.com
@hays__kansas@us.fedimeteo.com
@hutchinson__kansas@us.fedimeteo.com
@junction_city__kansas@us.fedimeteo.com
@kansas_city__kansas@us.fedimeteo.com
@lawrence__kansas@us.fedimeteo.com
@leavenworth__kansas@us.fedimeteo.com
@lenexa__kansas@us.fedimeteo.com
@manhattan__kansas@us.fedimeteo.com
@mcpherson__kansas@us.fedimeteo.com
@olathe__kansas@us.fedimeteo.com
@ottawa__kansas@us.fedimeteo.com
@overland_park__kansas@us.fedimeteo.com
@parsons__kansas@us.fedimeteo.com
@pittsburg__kansas@us.fedimeteo.com
@pratt__kansas@us.fedimeteo.com
@salina__kansas@us.fedimeteo.com
@shawnee__kansas@us.fedimeteo.com
@topeka__kansas@us.fedimeteo.com
@wichita__kansas@us.fedimeteo.com