"Micro-frameworks are definitely the pocketknives of the JavaScript library world: short, sweet, to the point. And at 5k and under, micro-frameworks are very very portable. A micro-framework does one thing and one thing only — and does it well. No cruft, no featuritis, no feature creep, no excess anywhere. Microjs.com helps you discover the most compact-but-powerful microframeworks, and makes it easy for you to pick one that’ll work for you." Ooh, nice.

"Books are good company, in sad times and happy times, for books are people - people who have managed to stay alive by hiding between the covers of a book." Both the letters described, and Robin's point, are beautiful.

"Leave the libraries alone. You don’t know the value of what you’re looking after. It is too precious to destroy." I know that the rhetoric works better as a speech than in writing; still I can't help but agree with this. It tugs at things important to me, and what a small village public library meant for my childhood.

"NewSoftSerial is the latest of three Arduino libraries providing “soft” serial port support. It’s the direct descendant of ladyada’s AFSoftSerial, which introduced interrupt-driven receives – a dramatic improvement over the polling required by the native SoftwareSerial."

"This page will maintain list of AI related libraries for the Ruby programming language." Some interesting stuff here, although it's all in varying degrees of maturity...