Here's a good, clear, short (!) presentation about copyright and writers here that has just been put out by the ALCS in the UK:

• http://www.alcs.co.uk/Members-information/Wise-up-to-copyright/Copyright2

Note that under the "what if I'm employed" heading, it doesn't mention the fact that almost all universities waive their rights to the copyright of their academic staff's writings.

DW