Here's some that I found - all in Ontario, but not sure how far from these places (Kanata/Ottawa/Dunrobin/Almonte/Arnprior) so I'll just post them all.

Rescues:

http://www.barlees.org/cgi-bin/index.php

http://www.pawswithheart.com/

http://www.noaws.com/

http://www.ptbo.igs.net/~laws/

http://www.oshawa.ca/com_res/animal1.asp#

http://www.animalguardian.org/

http://www.animalaide.org/

Dog Specific:

http://claringtonpetconnection.frees...com/index.html

http://trinityofhope.on.ca/home.html