"Ditaa" is “diagrams through ASCII art” — the thing used for the diagrams in the ZeroMQ book. You draw ASCII-art box-and-line #diagrams (with Emacs artist-mode or whatever) and it converts them to colored images with drop-shadows and whatnot. Org-mode bundles it. #graphics
Pieter Hintjens explains why he wrote #0MQ after having designed the AMQP protocol that e.g. RabbitMQ uses
Pieter Hintjens describes what kind of #performance you should expect from an AMQP broker like #RabbitMQ or from #0MQ and why. #Performance of RabbitMQ is about 60× worse than #0MQ by default and 4× faster than Apache Qpid, but that’s if you have persistence turned on in RabbitMQ.