Google say the automated email service on this blog is ending in July. I have email addresses of all the subscribers. I will try to remember to email you whenever a new post goes up! This is probably the last automatic one.
CORRECTION 12 Jan 2022. Six months after Google's announcement, the email service continues to work and even accept new email addresses. So I have reinstated the Suscribe: widget near the top right of the blog and we will carry on using that system as long we can.