Have you noticed the Subscribe option on your Gray Admin Bar? Whenever you are logged in and you visit another WordPress.com blog, this option is available. It’s an excellent way to keep up with all your favorite blogs!
The next time you visit WordPress.com, if new posts have been published on any of these blogs you’ll see a “NEW” notification on your admin bar. This lets you know that there are new posts for you to read. You can now use the “My Subscriptions” menu to quickly access your subscriptions reader and catch up on all the latest posts. You can also head straight to your subscriptions by using the new subscriptions tab on the WordPress.com home screen.
— Andy P.
I added all my students’ blogs, so I can see right away when they’ve put up new posts. And by clicking the Manage Blog Subscriptions button, I can easily add non-Wordpress blogs as well: