Wikipedia itself is doing fine but they have a bunch of super interesting side projects that they don’t advertise much, and aren’t doing as well. Wikinews, their news site is shutting down: https://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/Single/2026-03-31#News_and_notes (this is really close to april fools hopefully I didn’t eat the onion. Or hopefully I did?).
My favorite is wikibooks: http://wikibooks.org/ , which are open source texbooks that can be edited wikipedia style. Their programming one’s are really high quality. The idea behind those is that you can export a known good frozen version of them, as a texbook for a class. Related is also wikiversity, which is course curriculum. It’s similar, but different.
Wikipedia itself is doing fine but they have a bunch of super interesting side projects that they don’t advertise much, and aren’t doing as well. Wikinews, their news site is shutting down: https://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/Single/2026-03-31#News_and_notes (this is really close to april fools hopefully I didn’t eat the onion. Or hopefully I did?).
My favorite is wikibooks: http://wikibooks.org/ , which are open source texbooks that can be edited wikipedia style. Their programming one’s are really high quality. The idea behind those is that you can export a known good frozen version of them, as a texbook for a class. Related is also wikiversity, which is course curriculum. It’s similar, but different.
But they also have a travel voyage, wikivoyage, and more: https://en.wikipedia.org/wiki/Wikipedia:Wikimedia_sister_projects