We can't block them all, however we have created a spider that searches the internet for the most common adult websites and ads them to the list. This spider is working 24/7 to find new sites that have not been blocked. Though it's impossible to keep someone who is determined from finding those websites, we reduce the liklihood by adding the frustration factor after 10 or 15 min of finding nothing. After all, they could be playing Minecraft instead. We also subscribe to a few lists that are doing their own updating of content.