So what about the email notifications?

Quote Originally Posted by Gumball View Post
Stay tuned for something in that vein.

Until then here is an archive of the Articles section from 2011, which should have quite a substantial amount of the content that's been missing:

Site notifications show up when you have a PM or visitor message, and appear on the upper right corner of the page. There is a "Welcome, [your name]" message, and "Notifications" should be to the right of it. If there is no number next to "Notifications" then you don't have any new ones, but if you see a number you can click on it and it will itemize what needs viewing. An example might be along the lines of "1 Visitor Message" along with "1 Private Message".