I think this is relatively new, Government of Canada data. I was unable to add it to the list, but if it is new would it be appropriate to add to our growing list of data sources?
colan: It's not relatively new; it was announced today! :)
Minister Day Launches Open Data Portal
[I would have added my note as a comment, but this is a wiki page, so I can't do that. Looks like I'm not allowed deleting it to create a new post. -c.]