For those of you who haven't thought about Canada's anti-spam legislation, here's a suggestion: start thinking about them.
The latest regulations were published on January 4, 2013. While enforcement of the law probably won't start until the end of the year, if you are a business that sends email messages to Canadians, you will be impacted by this legislation.
Here are the regulations, posted in the Canada Gazette.
http://www.gazette.gc.ca/rp-pr/p1/2013/2013-01-05/html/reg1-eng.html