Ontario Genealogical Society Provincial Index (OGSPI), a "hypertext library established in 1997 as a volunteer project" to index genealogical sources on Ontario families. Some census records have been indexed for every year from 1852 to 1911, with each year being given its own coverage guide and browsable surname index. Containing 1,496,642 names (not all from census records) as of March 2009, this site is the largest non-commercial one of its kind.
Ontario GenWeb`s Census Project A rapidly growing, searchable collection of transcripts of Ontario census records, mostly for 1891 and 1901. Where available, these transcriptions are often more complete than those in OGSPI above, which sometimes omit such data as occupations and religious affiliations. As of November 2008 there were 845 transcriptions containing 1,326,351 names, each covering one township for one census year.