Dev Hints

Dev Hints is a cheat sheet website that lets you find documentation for almost any concept, feature or code snippet in seconds. For example, if you need a quick MySQL cheat sheet reference, just type "MySQL" and click the first option. It compiles all relevant docs into an easy-to-read cheat sheet, so you can dive right in by selecting the section you need. If you're a junior developer, this is easily the smartest, most useful site you'll ever come across.