I am not teaching students online right now, but I think Google and Youtube are unsafe sites. Parents should supervise their children at home. I also think parents need these resources, so they have some tools to use when teaching their kids. Students and parents are informed about Internet safety and they find out how to block unreliable or unfriendly users, because children spend a lot of time on the Internet at home. I agree that the best way to do it is using examples especially with children. We as teachers should check sites beforehand and if necessary filtering programmes should be used.