Your comments

"After visiting the page once the new notifications are automatically marked as read and appear like the rest the next time you visit the page."
Maybe that it would be nice to also be able to mark them as read on by one. Also, maybe an other way to mark notifications as read would not only be to visit the page but also a simple mouse-over the notification with a time (like if your mouse stay over 2s over the notification, it could be marked as read).