ØMQ - The Guide

by Pieter Hintjens

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by Henrik Joreteg

Think OS

by Allen B. Downey

C OS

Build Your Own Lisp

by Daniel Holden

The Varnish Book

by Tollef Fog Heen, Kristian Lyngstøl, Jérôme Renard

Speaking Javascript

by Dr. Axel Rauschmayer

Node: Up and Running

by Tom Hughes-Croucher, Mike Wilson