I've had a bit of a lightning bolt revelation this morning that I need to implement a complete ban on YouTube for my kids (who bloody love it obviously because it's highly addictive to young brains!). I think the best way to do this would be to make the website impossible to access on all our home devices (macs and kindle fires), but I'm a bit of a technophobe and can't for the life of me work out how to do this. Is it possible to block one specific website?? If so, please share your wise tips! Now I've made this decision I want to get it underway asap. Thanks in advance for any help