Astral Codex Ten
by Scott Alexander
The Beautiful Mess
by John Cutler
The FishmanAF Newsletter
by Adam Fishman
Knowingless
by Aella
Naive Weekly
by Kristoffer
Pivotal
by Abraham Thomas
The Pragmatic Engineer
by Gergely Orosz
Res Obscura
by Benjamin Breen
Sasha's 'Newsletter'
by Sasha Chapin
Small Potatoes
by Paul Bloom
Software Design: Tidy First?
by Kent Beck