Totally off-topic, I know, but I was expecting some kind of description of a virtual quarry or code pebbles or something.
More on topic, this seems to suffer from the same lack of control that most "cloud" software does. When they pull your link because your website is too popular (or not popular enough), what happens then?
Not really a complaint, I guess, more of a question -- is this something that comes up as an issue practically, or in most cases is it not an issue as a site grows?