I read somewhere (many years ago) regarding hacking that the actual act of intruding a system and/or causing damage and so forth is one crime, and that teaching someone how to do it is another. It could be that the source was simply incorrect (as there are security courses readily available), but I wonder if this is the same kind of scenario? Regardless, -linking- to something isn't the same as actually doing it. But I feel that the same kind of argument has been made against, say, Isohunt.com and it seems to have worked against them.