Canadian Centre for Philanthropy   Excellent source for information about and for Canada's charitable, non-profit sector. Some areas of the site require membership.
Canada Customs and Revenue Agency Revenue Canada 1-800-267-2384
Charity Village   1,300 pages of news, jobs, information and resources on philanthropy and volunteerism.  Also the site of the Canadian Fundraiser newsletter.
Public Guardian & Trustee 416-304-2800