If you would like to receive emails about significant additions or changes to this website, just tell us via the contact page. You will never receive more than one email a week (usual a lot lot less). Your address will not be seen by other recipients or used for any other purpose.

There is also a page called "whpnews" on Facelook. I sometimes post on this if I add a photo which I think people may like.

Note that there is a revision date at the bottom of each page of the website. This is generated automatically from the modification date of the file, and therefore reflects even very minor changes to the page which are not reported by email.