Just a note for regular readers: this blog will be moving to a new address in the next few weeks.
For years now, my website and my blog have been at different locations. I'm currently getting the website redeveloped, and as part of that I'm bringing the blog into it. All past posts should still be present and correct (I hope - that's the plan, anyway) but will be at the new address, and after the changeover happens all new posts will be there too.
I don't have a date yet when this is going to happen - it's still early days for the development work - but it should be reasonably soon.
I'll let you have more details when I know them!