- Mostly Adequate Guide [to functional programming with JavaScript]
- Tom Harding's Type Applications
- Beej's Guides are well-known and super friendly. His Guide to Network Programming is pretty famous, and the more recent Guide to Git is an excellent resource for newcomers.
- WebGL2Fundamentals and WebGPU Fundamentals: both GREAT resources for learning WebGL, WebGL2 and WebGPU. Filled with well-written explanations and interactive demos. I've learned a lot from them.
- The Book of Shaders is something I've seen recommended here and there, although I haven't had the chance to dig into it myself, yet. Doesn't seem to be complete, unfortunately.