I work in a small intependent school - lots of kids with money, but, paradoxically, there is a very limited budget for me. Like many schools we have had the ususal non sense about misuse of Facebook etc outside of school hours. I'm trying to encourage pupils to bring their laptops in to school and am workling through the issues this will cause. To mimise network overload and enforce filtering I will give teachers a limited number of wifi dongles with pre-configured wifi access codes to pass out to pupils that needs internet access during their lesson. My problem is with Ipad users. I could use mac address filtering instead of access codes, but how do I enforce filtering if they have 3G, which many do ? Any ideas !