The internet is brimming with curious content on just about everything. Here is some of my favourite pieces about software engineering, music, literature, and much more.
Beej's Guide to Network Programming
No nonsense, easy to approach guide to network concepts and socket programming.
Introduces different ways to approach optimisation, agnostic of the language. Complete with real world examples, this was a delight to read and ponder upon.
Excellent introduction to how Conflict-free Replicated Data Types work. Stumbled across this while reading about how conflict resolution happens in multi leader replication.