The next best thing to knowing something is knowing where to find it.
This section provides suggested reading and sources of help together with various internet links. It is an admittedly partial selection, but a good starting point.
Listing here does not imply recommendation or approval, and, as with anything that refers to sources of information on the web, it is also possible, indeed likely, that some of them may have moved, ceased to exist or been considerably revised since the time of writing. However, they are given as starting points and you can base further searches on them. We can take no responsibility for the present content or accuracy of the material, but note that they were helpful at some point. ...