August 2010 Statistical Report on Gambling from Statistics Canada
Statistics Canada recently came out with the statistical report “Gambling” which appears in the August, 2010 issue of Perspectives. It includes information on provincial government revenues and profits by province, characteristics of workers & jobs, household expenditures on gambling & gambling activities, etc.
The Alberta Gaming Research Institute page "Handbooks, Encyclopedias & Statistics" contains links to past reports by Statistics Canada related to gambling. They seem to publish updates on this topic on an annual basis.