Free content, multilingual online encyclopedia written and maintained by a community of volunteers through a model of open collaboration, using a wiki-based editing system.
- - Wikipedia is the most popular Web-based, Android, iPhone & iPad alternative to wikitolearn.
- - Wikipedia is the most popular Open Source & free alternative to wikitolearn.
The Encyclopædia Britannica is a general English-language encyclopaedia published by Encyclopædia Britannica, Inc., a privately-held company. The articles in the Britannica are aimed at educated adult readers, and written by a staff of about 100 full-time editors and...
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WikiSpooks is a global alternative encyclopedia on politics, spy craft, deep state intelligence, and conspiracies, free of corporate influence, partisan politics, or government propaganda for historians and truth-seekers to read, edit, and share.
Oppia is a free, open-source learning platform. Full of interactive activities called 'explorations', Oppia helps curious minds learn and teach.
- - Oppia is the most popular Linux & Self-Hosted alternative to wikitolearn.
Scholarpedia is a peer-reviewed open-access encyclopedia written and maintained by scholarly experts from around the world. Scholarpedia is inspired by Wikipedia and aims to complement it by providing in-depth scholarly treatments of academic topics.
The web's source of information for Ancient History: definitions, articles, timelines, maps, books, and illustrations. We're a small non-profit organisation dedicated to giving highest-quality history content to the world’s history enthusiasts, teachers, and students for...
World History Encyclopedia Features
Metapedia is an electronic encyclopedia which focuses on culture, art, science, philosophy and politics.
According to WikiPedia and various user reports: “Metapedia is an online wiki-based encyclopedia, which contains fascist, far-right, white nationalist, white supremacist, anti-feminist, homophobic, Islamophobic, antisemitic, Holocaust-denying, and neo-Nazi points of view.”
Community-driven catalog of learning resources. Links to resources are organized by topics (broad to specific) and rated/reviewed by users so you see which ones are the best. It's free and open for everyone.
Citizendium, powered by MediaWiki, is "an open wiki project dedicated to creating a free, comprehensive, and reliable repository of structured knowledge". Unlike with Wikipedia, a contributor must register using their real name and verify their identity.
Welcome to WikiIndex, a wiki of all wiki, wiki people, wiki software, wiki farms, and wiki ideas, a 'work in progress' founded in 2006. This is part of a continued effort to self-organize information collaboratively, started by Ward Cunningham a decade ago.