Emacs Docs
The main GNU Emacs documentation, but in a very attractive online form.
wyuenho/emacs-pet: Tracks down the correct Python tooling executables from your virtualenvs so you can glue the binaries to Emacs and delete code in init.el
What looks to be a module for Emacs that helps find the right venv for a project; I think. Saving this to look at at some point in the future.
eplot: Emacs library for creating charts
Library for doing pretty nice-looking plots in Emacs.
Blurring the lines between shell and editor
Cool things to do to blur the line between Emacs and Eshell.
The original magic Emacs garbage collection hack
Post going over a pretty sensible approach to doing GC in Emacs (not that I've ever really run into a problem with Emacs and GC).
Elisp in replacement string
Something I've never really paid attention to, and it's actually quite a powerful feature: when doing search/repalce in Emacs you can replace with Elisp code (as in, Elisp code can provide the replacement).