It’s not enough to wing-it, don’t make any guesses here! You cannot claim innocent to Copyright infringement – it’s a criminal offense – whether you know or don’t know, it is up to you to learn and find out, prior to writing anything about anyone, or their work. Know how to protect your work, and understand how to prevent a potential lawsuit. Here are the links to Canadian Copyright Law – the Act & Registration, Q&A, FAQ, and legal advice on all the Do’s and Don’ts. Do the DIY and the CYA, you won’t regret it in the long term.