http://www.autotaxi.com/autotaxi.htm
A pretty basic rideshare listing page.
http://www.bunac.org.uk/
BUNAC handle all the Canadian working holiday visas and also offer programmes in a range of other countries including the US.
http://www.amigoexpress.com/
AmigoExpress is a rideshare web site in Canada, but it's in French! I think it's focused on Quebec and other French speaking parts of Canada.
http://www.covoituragemontreal.com/
Carpooling / rideshare site for Montreal. There are some long distance rideshares available.
http://www.apartmenttherapy.com/sf/house-tours/four-people-and-a-dog-living-in-180-square-feet-home-away-from-home-tour-123518
Really interesting article about folks who built a cabin (they don't actually live there) for $7k of materials on an island near Vancouver.
http://www.hittheroad.ca/
HitTheRoad.ca is a rideshare web site that focuses on rides between Toronto and Montreal (and back) in rental cars. It currently costs $35 each way.
http://www.cic.gc.ca/english/immigrate/index.asp
Canadian Immigration web site.
http://www.interac.ca/
Interac offers an email money transfer service between people with Canadian bank accounts.
http://www.moremontreal.com/ridesharing/
MoreMontreal provides a rideshare service where you can post and search for rideshares to and from Montreal.