No ~ I just have an intranet set up that means I can "filter" via my PC everything they access from their wireless connections. I also have set up their laptops with me as administrator using passwords so secret they cannot get past them. 
Presumably that also gives you direct access to all the sites that they want to look at. 
If I wanted to I could monitor every keystroke they make but I can't be arsed. "Net Nanny" ensures they do not wander into pornography or graphically violent sites and I can be alerted to any attempts to circumvent the system. However the THW spends most of her time emailing her boyfriend and other class mates regarding homework, outings and meet-ups. She has thus far displayed total distain for facebook and similar sites as have her friends. They have their own little chat room which is on the school main site and monitored by the school ~ that seems to satisfy them. Facebook and other such sites are officially "Not Cool" anymore and inhabited, so I am told, by "saddos looking for kicks and/or recognition of their puny lives". When asked if she had put her photo on the site or any site for that matter she gave me a look of withering contempt and said "I'm not that stupid"
Minor is interested only in Trains and Pirates and Minimus likes to play "Adding up games" ~ (I do hope he doesn't turn out to be an accountant) and looking for Dragons.
