I've just studied up on hyperlinking, framing and copyright laws... again. And, after reading more about it, issues about linking and framing have become so intertwined under copyright law that it is impractical to attempt to address them separately. While hyper-linking might constitute an infringement, U.S. and EU approaches have manifested themselves differently. As it stands, on account of the presumption, it is conceivable that posting a link may give rise to an infringement claim in the EU where it would not in the U.S. Once again... a slippery slope. I guess everyone is happy until someone files a claim!