Canadian Centre for Philanthropy   Excellent source for information about and for Canada's charitable, non-profit sector. Some areas of the site require membership.
Ernst & Young (Canada) Useful resource for summaries of budgets and other government legislation.
KPMG Canada   Useful resource for summaries of budgets and other government legislation.
Ministry of Consumer & Commercial Relations 375-393 University Avenue, 2nd Floor 416-314-8880
Business Registration
Canadian Institute of Chartered Accountants   416-977-3222