The Supreme Court of Canada recently ruled in favor of Newton in the Crookes v. Newton, declaring that this specific use of linking to allegedly defamatory material did not constitute publishing. A number of people have suggested this has links to policy discussions in copyright where sites like ISOHunt that allegedly "just link" to content should be equally immune (See article by Jesse Brown as an example).
I think this requires more than a cursory look at both what the Supreme Court said and the policy being proposed to be added within C-11.