And yet the law (here, at least) is clear that even copy-written logos may be used, in a work of art, if that logo is not a major element in the composition. In other words if the piece isn't all about the logo, then you can use it.
Unfortunately some companies, like Harley Davidson, are are so 'brand conscious' that they will hammer down legitimate users, through an avalanche of paperwork and lawyers, to the point of bankruptcy.
On this law, it goes too far. As someone who has the occasional photo published my work has been ripped off, reproduced, and sold without my leave. It has been used in advertising material. It has been hacked up and used on commercial websites. Obviously I need some protection, for my intellectual property. This law, however, takes it to absurd extremes. Under it, it is conceivable that I could have my website pulled if I posted a link to another site, in order to call attention to the fact that they were illegally using copy-written material (perhaps even my own).
