As the a bit in the first link below states, we're entering a world where we can no longer even criticize the press freely, since we're bring required to pay to reproduce as few as five words of what they publish.
Read about it here and here.
The Electronic Frontier Foundation (EFF) had a great piece on it that raises really valid points. They've also got a must-read section on their website that looks at bloggers' legal rights in the US. I hope to find something about similar legislation in Canada. Wikipedia's got a decent little section on fair use legislation that's worth reading, as well.