Guide to common connectors (otherwise an overwhelming array of options) with suggestions for less expensive crimping tools.

This is a classic. Dmitry wrote an ARM emulator for the 8-bit AVR ATmega microcontroller, and successfully built what is probably still the slowest, cheapest, single board Linux computer.

He's also written an ARM Thumb emulator for the ATTiny85:
http://dmitry.gr/?r=05.Projects&proj=08.%20uM0

This article (and its sibling on decreasing an LVM logical volume size [1]) were helpful to me today, and I'm sure I'm going to have to look this up again at some point.

1: https://www.rootusers.com/lvm-resize-how-to-decrease-an-lvm-partition/

Russel Smith converts a typewriter into a keyboard with a single SoftPot touch sensor.

Brad Fitzpatrick's thoughts on making open-source projects easier to contribute to (2010).