All about your tax return:
http://www.cra-arc.gc.ca/tx/ndvdls/tpcs/ncm-tx/menu-eng.html
T2201 Disability Tax Credit Certificate:
http://www.cra-arc.gc.ca/E/pbg/tf/t2201/README.html
Tax Planning Guide:
http://www.taxplanningguide.ca/tax-planning-guide/section-2-individuals/
Mondaq Canada: Tax (law cases)
http://www.mondaq.com/default.asp?topic_id=18&product_id=7
Canadian Legal information association:
http://www.canlii.org/en/index.html
Tax Specialist Group