The following URLs pointed to by
http://www.debian.org/CD/vendors/index.en.html#ca
are broken links.
http://www.warpedsystems.sk.ca/sections.php?op=viewarticle&artid=13
http://adelielinux.com/software.html
http://www.softcopy.on.ca/debian.htm
At first glance, adelielinux and libranet (there is no URL for that one)
just don't sell Debian anymore (they are sites of commercial
Debian-based distributions...).
UNLX is probably not the most reliable seller (they're currently selling
3.0r2).
Peterborough Linux User Group is currently unreachable, and I strongly
suggest verifying that it still exists.
Filipus Klutiero