I like to have a folder of subscribed threads that are all my school specific threads and then just have a bookmark to that folder. That way I am not getting emails or anything, but can quickly check all of the schools threads quickly.
Also, it keeps my other subscribed threads separate from the school specific ones.
A caution to others doing this though that use SDN Mobile (at least the iPhone version). If you have the app open to a thread you are subscribed to and then go to it on your computer cause you want to post in it or something, it will unsubscribe from it for some reason. You then have to resubscribe to it, which is kinda frustrating because sometimes you do not even realize it 'till you're like, "Hmmmm, why have I not seen any updates in the Mayo thread recently, normally there are like 50+ a day?"... So yeah, just watch out for that.