Scholarpedia might be a bit more popular than Alchetron. We know about 1 link to it since March 2021 and only 1 link to Alchetron. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Less obvious are; https://www.zum.de/whkmla/, a Korean website, https://www.eisa.org/ African electoral website, https://publishing.cdlib.org/ucpressebooks/view?docId=ft4b69n91g&chunk.id=d0e33&toc.depth=1&toc.id=&brand=ucpress Rebel and Saint by Julia Clancy-Smith, https://www.africa.upenn.edu/#:\~:text=Inquiries%20regarding%20the%20activities%20of,should%20be%20directed%20to%20Ms. African studies centre at U... Source: about 2 years ago
Scholarpedia[1] also exists, but is very sparse and mostly a specialist reference. [1] https://scholarpedia.org/. - Source: Hacker News / 6 months ago
Wikipedia - Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
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Encyclopædia Britannica - Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.
Oppia - Oppia is a free, open-source learning platform.