I've been put in charge with a couple of students at my college to tutor them. There are a few tutorial programs on my Macbook Pro that they need to use, but I wanna make sure that thats all they're doing. I heard that there are a few terminal commands that you can put in so that certain websites will not be accessible by the browsers. I know I can simply use my admin privileges and remove access to Safari, but I want to give them the freedom to do research on google. All help would be greatly appreciated. Oh if it means anything, the mainpage I'm trying to block is MySpace =P.