If it's logical, easy, and fun --- then it's Mac! You want to keep up with the latest. When you click on RSS you will be notified in your list of email. Here's where you select RSS for the newsblog. Click to enlarge the screen shot.
Here's where you select RSS to get John Carter's posting to www.pmug.us
And this is how it comes up in my email list in Mail. Try it for yourself, and keep up with your PMUG.