That automated geneology sites census info is transcribed from the national Archives records. Below is the link for the NA (National Archives) and if you scroll down you will see either censuses you can search online (including the easier accessed ones on automated geneology site) or learn how you can view them. Many still on microfiche.
NOTE: the censuses info viewable are ACTUAL IMAGES OF THE CENSUS pages!!! Automated Geneology is awesome, as you can search by name and locations and names linked to past or future censuses, etc. Amazing job of transcribing and putting it all online for the public, hey?
Census Microfilm Reels from 1666 to 1901
Census of 1851
Census of Ontario, 1871
Census of Canada, 1901
Census of the Northwest Provinces, 1906
Census of Canada, 1911
http://search-recherche.collectionsc...p?Language=eng
Scroll down that page as there are a lot of really great information you can view and/or access.
Have fun