The Census Program Dissemination Project has recently announced the launch of the Census Program Datasets (CPD) portal which is now available.
The multi-census year data portal provides users with streamlined access to selected datasets from the 1991 to 2011 Census as well as the 2011 National Household Survey.
Statistics Canada releases some of their files in Beyond 20/20 format, a free Windows-based program that allows users to manipulate their data to a much greater degree than is possible with the interface on the Statistics Canada website.
Open Government (Data Portal) - Provides one-stop access to Government of Canada data and information.
From the University of Toronto Data Library Service: