Eli Benderski

Homepage: eli.thegreenplace.net/

Amazing systems programming tutorials. Whenever you Google a hard topic, his blog comes up.

Also has many great contributions on Stack Overflow: stackoverflow.com/users/8206/eli-bendersky

As of 2016, Eli worked at Google (reference). TODO before that, I had found his earlier info previously but lost it.

Eli focuses mostly on compiler toolchains.

He also has some mathematics stuff, so cute: eli.thegreenplace.net/2015/change-of-basis-in-linear-algebra/