We have a few younger members of staff who lived on it, I was instructed by a director to ban all of the sites and strangle access to the internet for them as it was very unproductive.
I dont mind forums, they are places you can check in on every day (or a couple of times a day) but a place which is full of your pictures, crap text speak and "friends" who havent even been in the same county ever before is a bit sickening to me.
HH, Skype is a far better method of staying in touch, as far as I can remember you can do conference calls etc too for free.