“But as well as copy-shop piracy, there is another kind of "taking" that is more directly related to the Internet. That taking, too, seems wrong to many, and it is wrong much of the time. Before we paint this taking "piracy," however, we should understand its nature a bit more. For the harm of this taking is significantly more ambiguous than outright copying, and the law should account for that ambiguity, as it has so often done in the past.”