Thanks to our member Kathleen for finding this huge list of online Canadian fabric, pattern and notion stores from The Finished Garment blog.
At the time of this writing, their list was last updated on January 6, 2015. I imagine they will update it as time goes by.
For your future reference, you can either bookmark the page the link above goes to. Or if you use our site, it is now an item in the drop down LINKS menu at upper right of our site. Click on the Canadian Online Stores choice and it will take you there!