Tuta (formerly Tutanota)

Independent privacy-friendly email and calendar provider which is ad-free and paid for entirely by their users’ subscriptions. There are free open source apps for Android, iOS, Linux, Mac and Windows. There’s also support for E2EE and 2FA wherever possible.

Fediverse address:
@Tutanota@mastodon.social

Haus der Astronomie (Centre for Astronomy Education and Outreach)

Education centre in Germany which holds workshops, summer schools and conferences all about astronomy and related topics. Operated by the Max Planck Society, and created in partnership with the Klaus Tschira Foundation, the University of Heidelberg and the City of Heidelberg.

Fediverse address (in German and English):
@hausderastronomie@astrodon.social

Smashing Security

“Smashing Security” is an award winning podcast which is in theory about infosec, but in reality it’s a very entertaining (and occasionally slightly rude) round-up of all sorts of computing and tangential non-computing news. Features lots of back-and-forth banter between hosts Graham Cluely, Carole Theriault and their special guest.

Fediverse address:
@smashingsecurity@mastodon.green

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

The Open Source Programme Office (OSPO)

Part of a European Union initiative to transition to free open source software, OSPO handles the commission’s relationships with the libre software community. This account is not just a feed, they do actually interact, boost, reply, follow etc.

Fediverse address:
@EC_OSPO@ec.social-network.europa.eu

Dr Alán Aspuru-Guzik

Professor of Chemistry, Computer Science, Materials Science and Chemical Engineering at the University of Toronto. Founder of Zapata Computing and Kebotix. Directs Acceleration Consortium at University of Toronto. Editor-in-Chief of the Digital Discovery journal. Works on artificial intelligence and quantum computing.

Fediverse address:
@aspuru@mastodon.social

FreeTech Project

Non-profit initiative helping people use technology in a more financially, socially and environmentally sustainable manner, mainly relying on FOSS wherever possible. Provides help to everyone, regardless of technical skill level. Based in South Yorkshire, UK.

Fediverse address (main):
@freetechproject@floss.social

Fediverse address (videos):
@freetechproject@tilvids.com

Computertruhe e.V.

Volunteers in Germany who repair abandoned computers so they can be donated to charity.

Fediverse address (main account, in German):
@computertruhe@mastodon.social

Fediverse address (Berlin branch, in German):
@ComputertruheBerlin@mastodon.social

Fediverse address (Chemnitz branch, in German):
@ComputertruheChemnitz@chaos.social

Fediverse address (Munich branch, in German):
@ComputertruheMuenchen@social.tchncs.de

Snikket

XMPP-based free open federated messenger project. It aims to make XMPP into a more viable alternative to Whatsapp etc by providing consistency in design and terminology, while still maintaining compatibility with other XMPP apps and servers. (It’s a similar plan to how Mastodon made ActivityPub more mainstream while still being compatible with other ActivityPub server types.)

Fediverse address:
@snikket_im@fosstodon.org

Deutsche Zentrum für Luft- und Raumfahrt / German Aerospace Centre

German government centre for aerospace, energy and transportation research, and effectively the German space agency.

Fediverse address (main account, in German):
@DLR@social.bund.de

Fediverse address (alternate account, in German):
@dlr_next@social.bund.de

Manyverse

A new kind of social network which works peer-to-peer, and all personal data is stored locally on your computer or phone. It’s part of the Scuttlebutt network, but has a user-friendly interface, features and branding that are aimed at a more mainstream audience. There are free open source apps for iOS, Android, Linux, Mac and Windows.

Fediverse address:
@manyver_se@fosstodon.org

Shaw Alphabet

Dedicated to posting about the Shavian alphabet, an attempt to give the English language a more phonetically logical character set. Named after George Bernard Shaw, who funded it in his will.

Fediverse address:
@shavian@polyglot.city

Fediphoto Lineage

An app for Android phones available through F-Droid which makes it as easy as possible to share photos on the Fediverse. It’s based on an app by PLA, who enjoyed sharing pictures on the Fediverse while out and about. PLA sadly died in January 2021, and Fediphoto Lineage aims to honour his memory by keeping his project alive.

Fediverse address:
@fediphoto_lineage@libranet.de

kottke.org

One of the oldest blogs on the internet, founded in 1998. Posts an eclectic mixture of news items, curiosities, art, technology and more. (Technically this is a bot account, but it’s also the blog’s official account.)

Fediverse address:
@kottke@botsin.space

The Fedivision Song Contest

An annual event on the Fediverse where people are given a couple of weeks to create a song, then they are published and people on the Fediversevote on a favourite. Usually takes place on or around the time of the Eurovision Song Contest.

Fediverse address:
@announce@fedi.vision