Any time you combine "the internet" and "children" people freak out. And not without reasons, but it's also very unhelpful.
I have been trying to get an intranet set up for them to learn, but I get so little support doing this from IT. And I'm asking a lot of them! There are not a lot of off the shelf "educational servers" designed for kids to play with that have been tested for years and come with worksheets and lesson plans.
I have to make all that from SCRATCH.