There's been a bunch of past discussion concerning an EA Wiki, and it took me a few hours to find it all. I'm writing the links to past discussion below so that it saves someone time if they choose to go down this rabbit hole!
Possible candidates/sources for EA Wiki:
- https://eawiki.org/
- https://docs.google.com/spreadsheets/d/17njnrWd-YQcXNkRJjA6aRmtLkoxyeMeldW6xXB3mEkk/
- https://causeprioritization.org/
- http://priority.wiki/
- https://timelines.issarice.com/wiki/Main_Page
Dead URLs:
- http://effective-altruism.wikia.com/wiki/
- https://wiki.eahub.org/wiki/Effective_Altruism_Wiki
- http://effective-altruism.com (this just redirects to the EA Forum)
Relevant Forum articles:
- [Feb 2020] https://docs.google.com/document/d/1R4O4WEKdbuZ63ZvfyGSLAGvtRr8vaRg2BmMz3B6TG8o/edit#
- [Dec 2019] https://forum.effectivealtruism.org/posts/EDJRwoG9f852ehKEv/should-we-use-wiki-to-improve-knowledge-management-within
- [June 2018] https://forum.effectivealtruism.org/posts/gFxgPhn3myvjo7NSo/announcing-prioritywiki-a-cause-prioritization-wiki
- [July 2016] https://forum.effectivealtruism.org/posts/7Jf4oJP2mBszAhYEe/ea-database-reading-list-why-it-might-be-useful
- [Oct 2015] https://forum.effectivealtruism.org/posts/j7uN8MHiqNt2gY8Sc/announcing-the-new-ea-wiki
I am skeptical if making an EA Wiki is better than uploading EA-relevant articles on Wikipedia (https://www.wikipedia.org/).
There are many other arguments for why it wouldn't be a good idea, but I want to focus on the target group.
Case 1: The target group is EAs. In this case, the EA Wiki would probably host in-depth/comprehensive knowledge that is not available on places EA's normally visit like 80000hours.org or effectivealtruism.org. It would serve for questions like "Has anyone in EA ever talked about __?". As of now, most of this "in-depth" knowledge is present in the form of EA Forum posts and comments. Most of the content on the EA Wiki would be copy-pasted from the EA Forum. The EA Forum is well-searchable, and it already fulfills this purpose. For long-run things like "how should the EA content be organized in the long run (e.g. 5 years later)", an EA Wiki may be more promising. But, for the reasons written above, it is difficult to see any real use of it in the short term (e.g. 1-2 years).
Case 2: The target group is non-EAs. The EA Wiki wouldn't show up in search engines. Period. Wikipedia articles appear much more easily on search engines and are linked to by other Wikipedia articles. A much better idea would be to upload EA-relevant articles on Wikipedia. Also, there is more scope for extending EA to other languages since Wikipedia supports articles in a 5-10 other languages.