BDO Dunwoody LLP - A major Canadian accounting and consulting firm. The site contains useful tax information, such as timely reports on the federal and provincial budgets. www.bdo.ca
Canadian Sales Tax Refund Service - Helps businesses and travelers to Canada retrieve some of the sales taxes paid during their visit. Small fee. cstrc.tripod.com
Canadian Tax Help - Moncton, NB based personal tax service. Also offer a weekly tax column. www.canadiantaxhelp.com
David M. Sherman - An expert in Canadian GST, PST and Income Tax law. Besides his numerous publications, he is also available for professional consulting. www.davidsherman.ca