Just a bit of housekeeping. Please note that at the bottom of each post, there is a button for 'Facebook' and 'Twitter', enabling you to share posts via your accounts, should you wish to do so. Just click the URL for the specific post, and click the button for the social media network system you use. I would also ask that you consider adding posts you might particularly like, or think are worth sharing, to Reddit, Digg, Stumbleupon etc. The links below each post that are supposed to enable this seem to don't work at the moment, but I am working on it.

The comments moderation system is changing slightly. This is to filter out trolls using IP blockers, as well as a surprising amount of spam that I have to keep deleting. Essentially, if you want your comments to be approved immediately, you should sign in with an account. The JS-Kit commenting system allows you to sign in with Google, Twitter, Friendfield, Yahoo, Haloscan and OpenID accounts, as well as JS-Kit itself. I expect this might be inconvenient to a few people, but it will help weed out habitual trolls - regular commenters shouldn't be affected by this... oh, sorry, what am I saying? Everyone is banned!

And yes, that is my panhandling 'donate' button in the top right corner. Many thanks to everyone who has already sent donations. It is, admittedly, screaming for attention, but I will try to see if I can design a more tasteful and less garish button to use. Be assured that donations contribute directly to the upkeep of the blog, specifically in keeping me in a steady supply of books. Effectively, you are paying this Grub Street scribbler to research and write blog posts, and pursue book-writing projects. The fruits of which will very shortly be disclosed... cheers.

PS: what's that? You want me to draw you a diagram? Oh, very well (click to enlarge):