A few sites about copyright:
"Fair Dealing" (Commonwealth copyright info): This wikipedia entry is a starting point if you're at all confused about copyright guidelines. "Fair dealing is an enumerated set of possible defenses against an action for infringement of an exclusive right of copyright."
"Fair Use" (like the above, unique to the U.S.A.): (wikipedia entry) "A doctrine in United States copyright law that allows limited use of copyrighted material without requiring permission from the rights holders, such as use for scholarship or review. It provides for the legal, non-licensed citation or incorporation of copyrighted material in another author's work under a four-factor balancing test."
The Copyright Website: "Welcome to the Internet's first and premiere Copyright Registration and Information Resource. The Copyright Website strives to lubricate the machinations of information delivery by providing transparency to a particularly opaque and obtuse area of intellectual property. Whether you want to protect your own work, or check out the legal hijinks of the movie, recording and software industries, you've come to the right place!"
Canadian Copyright Act: The full text of it.
Access Copyright (formerly CanCopy): Canadian "innovative copyright licensing solutions". "In schools across Canada, from elementary to post secondary, the comprehensive photocopy licence from Access Copyright is at work every day, making sure Canadian educators and students have access to a global repertoire of content to meet their learning needs. The licence gives educators and students advance permission to copy from millions of copyright protected newspapers, magazines, journals and books from around the world, complementing what is allowed under fair dealing, educational exceptions under the Copyright Act, and through the public domain." Access Copyright also provides for advance clearance and pay-per-use licenses "for copying beyond the limits of the comprehensive licence. Pay-per-use licences can cover needs such as digital uses (posting content online or scanning it, for example)."
The Cost of Copyright Confusion for Media Literacy: Confused about copyright for education purposes? Check out this article/report.
If you need more, please visit my resource site's page of links about copyright.