A web-based org-mode viewer
https://codeberg.org/gopiandcode/emacs-viewer
Emacs in the browser
https://github.com/karlicoss/cloudmacs
A giant page of some of the best hints and tips on how to use org-mode in Emacs and how to customize things.
http://doc.norang.ca/org-mode.html
How Emacs' Gap Buffers implementation for text editing holds up against more modern datastructures.
https://coredumped.dev/2023/08/09/text-showdown-gap-buffers-vs-ropes
How Emacs detects circular lists while printing them.
https://coredumped.dev/2024/02/23/cycles-all-way-down
How to setup spell checking in Emacs. Goes beyond just `M-x flycheck', just a bit. Includes a fun video with Stephen Fry about language.
https://joelkuiper.eu/spellcheck_emacs
A short introduction on MozREPL.
http://blog.binchen.org/?p=987
Gallery of Emacs themes.
http://pawelbx.github.io/emacs-theme-gallery