I have been using Feedburner, which is owned by Google, to manage the feeds and email subscriptions for my websites. However, Google is no longer supporting Feedburner, is not accepting new subscribers, and seems well on the way to phasing out Feedburner altogether.
Therefore, I am in the process of switching to Follow.It to manage my email subscribers. You can sign up for email updates by using the form at the top of the right-hand column, or by clicking here.
If you are already subscribing to this website via Feedburner, you will apparently continue to get email updates for now. However, I suspect this service will end soon, so please subscribe using Follow.It.