Subscribers to this site's e-mail notifications will notice a different type of notification coming into their mail boxes. I had been using a system called Bloglet, but the system has not been maintained, and in fact, notice of the the August 28 update might not have been mailed to you. For details on Bloglet, see the statement on the Bloglet site.
I followed Bloglet's recommendation and converted to Feedblitz. If anyone has trouble withe Feedblitz, let me know. It seems to run well, and it has an easy unsubscribe feature.