They're not exposed to more or less advertising than anybody else. As I think somebody mentioned before, the site has real costs and they need to be paid for.
You may have mentioned Club Penguin. I'm not sure if that's the Penguin you meant. If that's the one you meant, it's a paid service. We're not a paid service; we're a free service. Free services have to be paid for somehow.
We have the same age requirement that Facebook and many social networks have, which is to be 13 years old. It's self-reported, so you can't really verify some of that stuff. We could, I suppose, show less advertising based on your age, but I'm not sure that we want to go down that road.
Do you have anything to add?