Recently, I added a subscription service to the site. In the sidebar to the right of the main content, there is a form. Enter your name and email address and you will (if I did everything correctly) be subscribed. You will receive an email anytime I make a new post (such as this one) to the site!
The tool I am using seems to have an option for an email Newsletter as well... I may do some experimentation with that as well. We shall see.