Government Resources -

Multinational:

• International Monetary Fund - HQ in Washington, D.C.
• The World Bank - HQ in Washington, D.C.

Australia:

• Australian Job Search Government - government-only subset of the Australian government's mega site
• Public Service Gazette - (AUS) jobs appearing in the print publication

Canada:

• Public Service Commission of Canada - jobs in the Canadian federal government
• Jobs Etc - information and resources, in addition to job postings (government and non-government), covering workers' rights, benefits, trade unions, and career exploration and training
• Jobs in Canadian provincial government:
  • Alberta Personnel Administration Office
  • British Columbia Public Service
  • Manitoba Employment Opportunities
  • Ontario Government Jobs

New Zealand:

• New Zealand Government Jobs Online - (NZ) job opportunities in New Zealand's government

United Kingdom:

• Civil Service Recruitment Gateway - (UK)

Commercial Websites with Government Jobs -

• The Guardian Jobs - (UK) the local government section of this mega site
• Local Government Jobs in the UK