This is something I think I'll be trying out with my own daughter. It's a web browser designed only to access 'safe' websites. It's made by KidZui and there is the choice of a free version or you can have a membership subscription. The free version gives you reports on what your kids are using the browser for and what sites they are looking at.
The subscription version gives you the same but a bit more detail. It also gives you kids access to more accessories and Zui clothes!! (Think I'll go for the free option)
Anyway, if you want your kids to have access to 800,000 safe websites without having to look over their shoulder the whole time, then this looks like a good choice. Runs on PC and MAC.
Hope you enjoy it.