Short introductions to every technology the quiz covers.
Each primer is a short, practical orientation to one technology: what it is, when to use it, its core concepts, a taste of real code, your first steps, the mistakes beginners most often make, and how to get it online. They're the map rather than the whole trip - when you're ready to build something, the step-by-step guides take over.
Not sure which to read? Take the quiz for a recommendation, or browse every pick it can make.