Links to external URLs (i.e. pages on other websites) on this site will open in a new window or tab, depending on your browser and how it is configured. Links to other pages within this site open in the same tab. Hover your pointer over each text or image hyperlink if you wish to see a full description of where it will take you before clicking.
Dead Links and Embedded Media
I have tried to be selective in linking to, and embedding content from, external sites on this one, choosing content that is unlikely to disappear wherever possible. For example, I have linked to Wikipedia pages for subject explanations wherever possible, and video content either from the Internet Archive or “official” channels on YouTube rather than private YouTube uploads of third-party copyright material, which YouTube will take down if the copyright owner asks them to. I also check the external links and content on this site regularly. However, the selection of “perma-content” hasn’t been possible in all cases, and it is likely that sooner or later, some links and embeds will die and a visitor will discover the corpse before I do. If you come across one, I’d be grateful if you could contact me to let me know.
The PDF files offered for download from this site take advantage of a modern version of the PDF standard to minmize file sizes, and thus bandwidth costs. You will need Acrobat or Adobe Reader version X or later to read them, or a third party reader that can cope with PDF version 1.7, Adobe Extension level 8 (Acrobat X).
Windows (Vista and later), Mac/iOS and Android – if you have Adobe Reader X or later, the PDF files downloaded from this site should open without any problem. If you have version 9 or earlier, you will need to update it. If you have version 9 or earlier of the full edition of Acrobat (standard or professional), you can install the latest version of the reader alongside it, which will enable you to read (though not edit) PDF files that were created using more recent versions of Acrobat.
Linux – Adobe stopped producing a dedicated Linux version of the reader after 9. However, the third party PDF Exchange Viewer running under WINE in Ubuntu 12.04 LTS (64-bit) works for me in opening the files from this site. Adobe Reader X and XI are reputed not to work reliably under WINE.
Browsers – The PDF reader built into the Mozilla Firefox browser (version 27.0 at the time of writing) cannot display these files – Firefox users should click the “Open with different viewer” button in the top right of the browser window.
There are some embedded YouTube, Vimeo and Internet Archive videos in the pages on this site. If you are having trouble viewing them, it is probably because you do not have the Adobe Flash Player installed on your computer or device, or you have an obsolete version that needs updating.
Stuff on the Old Version of this Website
A previous version of this website was online between August 1, 2006 and January 28, 2014. Some, but not all of the material of it has been revised and/or reformatted into pages on this version, which was initially created during February 2014. If you are here because you bookmarked a page and/or file on the old site and it no longer exists, you will probably be able to find it on the Internet Archive’s Wayback Machine, using the date on which you made the bookmark. Most of the pages on the old site were not altered significantly after early 2011. If you wish to create date-specific permalinks to individual pages within this site (or any other, for that matter), you might like to save them on WebCite.
Cookies and Internet Security
This main text of this page was initially written on February 5, 2014, and last updated on March 1, 2014.