Scott McLeod has an important article posted at the American Association of School Administrators site titled "Blocking the Future"
This part caught my eye:
[S]chool district leaders have a critical choice to make: Will their schools pro-actively model and teach the safe and appropriate use of these digital tools or will they reactively block them out and leave students and families to fend for themselves? Unfortunately, many schools are choosing to do the latter. . . . I can think of no better way to highlight organizational unimportance than to block out the tools that are transforming the rest of society. Schools whose default stance is to prohibit rather than enable might as well plant a sign in front of their buildings that says, “Irrelevant to children’s futures.”