Alexander Shulgin and David E. Nichols are amazing.
A crash course in organic chemistry | Jakob Magolan
The 2018 Löwdin Lectures - Markus Reiher
The 2019 Nobel Prize in Chemistry - Lithium Ion Batteries
Quantum Chemistry - Introduction
Marie Curie's PhD thesis (2020)
Organic Chemistry Portal
The Vespiary - Virtual encyclopedia of drug synthesis, precursor synthesis and drug pharmacology with many links.
What gear/glassware should I need for some easy beginner synths and what should my budget be? (2020)
What should a beginner do to get started synthesizing? (2020)
Chemify - Project dedicated to making chemical synthesis accessible to everyone, regardless of training. (Code)
The Nobel Prize in Chemistry 2020: Genetic Scissors (HN)
Zhang Lab - Studies biological diversity to discover systems and processes that may be harnessed for the improvement of human health.
Machine Learning in Chemistry 101 course
Highly Opinionated List of Open Source Cheminformatics Resources