Here are some sites that might be of interest to you.

Canadian Automobile Sports Club CASC Ontario Region

Canadian Race Communications Assocation CRCA

Canadian Timing Assocation CTA

Formula 1200 Racing F1200

Kitchener Waterloo Rally Club KWRC

Motorsport Marshalling Service MMS

Vintage Automobile Racing Assocation of Canada VARAC

Canadian Motorsport Hall of Fame CMHF

Maple Leaf Rally Club MLRC

Canadian Association of Rallysport CARS

ASN Canada FIA

Canadian Motorcycle Association CMA

Corduroy Enduro