Categories:

Public Service Commission of Canada's Federal Job Site
Extensive listing of government positions in a variety of fields. Includes regional job information.
http://jobs.gc.ca/

Canada Post Employment Opportunities
Categorized according to technical, mail operations, professional and administration fields.
http://www.canadapost.ca/CPC2/admin/hr/jobs/eomain.html

Government Jobs Canada
Guide to Canadian federal, provincial and municipal government jobs.
http://www.pse-net.com/joblistings/joblistingCan.htm

NRC Careers
Currently available positions at the National Research Council open to the general public.
http://hr.nrc.ca:8080/HRB/careersm.nsf/pagee/home

RCMP Ontario Human Resources
Provides information about departments within the section, and also recruiting information for applicants to the RCMP.
http://thenetnow.com/rcmp-grc/