Emna Ayadi published a great blog post detailing the best way to approach testing an API, including using the heuristic POISED (Parameters, Output, Interop, Security, Errors, Data).
Ire Aderinokun at bitsofcode put together a nice overview of website performance metrics, such as First Contentful Paint (FCP), along with the ideal times for each metric.
Algorithm Wiki is a repository of algorithms categorised by family which came about when scientists at MIT decided to measure how algorithms have improved over time.
The latest edition (25) of the extremely useful Technology Radar is out now. The radar plots a range of the latest tools, platforms, techniques & languages in the categories of Adopt, Trial, Assess & Hold, based on the vast experience of the consultancy company in using them all every day.
Yasas Sri Wickramasinghe put together a great list of extremely useful tips and tricks in Chrome Developer Tools that you may not have seen yet, such as the CSS overview tool, and the CSP violation detector.
