Works by the EA community or related communities
Why I prioritize moral circle expansion over artificial intelligence alignment - Jacy Reese, 2018
The Moral Circle is not a Circle - Grue_Slinky, 2019
The Narrowing Circle - Gwern, 2019 (see here for Aaron Gertler’s summary and commentary)
Radical Empathy - Holden Karnofsky, 2017
Various works from the Sentience Institute, including:
Thanks for adding those links, Jamie!
I've now added the first few into my lists above.