Wikipedia - Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Kiwix - Kiwix enables you to have the whole Wikipedia at hand wherever you go!
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Oppia - Oppia is a free, open-source learning platform.
Slack - A messaging app for teams who see through the Earth!