Official YSlow Open Source Project Website. YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
In the 20th Century, meaningful education was all about learning your ABCs. Today, it's centered on Alphas, Betas and C++. Programming skills are becoming ever more important, quickly turning into the core competency for all kinds of 21st Century workers. (tags: informatik programmierung schule)
Julia is my favorite programming language. More than that actually, perhaps I'm a bit of a fanboy. Sometimes, though, the ceaseless celebration of Julia by fans like me can be a bit too much. It papers over legitimate problems in the language, hindering progress.