Apart from what is obvious (from a Google Search), what are the various resources available if I want to learn how to do something in VASP (for example, starting an HSE06 calculation)?
Vasp has a very comprehensive online Manual setup in the format of a Wiki. That should always be your starting point for getting started with any type of calculation. The Vaspwiki includes things like:
- Step-by-step details of running most types of calculations.
- Descriptions of input parameters, with details about when they are necessary or important.
- Several worked examples with sample input files to use as a starting point.
As an example, for HSE06 calculations you can find these details: