What about Notifications In the Notification window when someone have posted in a Thread you've subscribed too?.
Like its now:
*No new Messages"
(1): Mail From Person "Name".
(1):New subscription alert.
Subscriptions: *quick link to the subscriptions*
I Think this would be good as you can keep Site things to the site, instead of only Getting in the Controll Tab.
Or by Email, it would be a very Usefull New feature.
At least it would save you from having to check it all the time for new post, or get a filled Inbox on your Email because you wanted some kind of Notification that was visible.