Here are a few important links to related resources:

Canada Revenue Agency
http://www.cra-arc.gc.ca/menu-eng.html

Employment Standards
http://www.labour.gov.on.ca/english/es/

Canada Pension Plan Application Form
http://www.servicecanada.gc.ca

Old Age Security Application Form
http://www.servicecanada.gc.ca

Workplace Safety and Insurance Board
http://www.wsib.on.ca/en/community/WSIB