Here are some groups, educational institutions, and businesses that I recommend...

Ontario Handweavers and Spinners          

OHS Spinning Certificate course                  

Haliburton School of Art + Design              

Toronto Guild of Spinners and Weavers  

Textile Museum of Canada

Ontario Fibreshed                                

Wellington Fibres                                               

Upper Canada Weaving

Iron Cauldron Colour Works

Ken Hyatt, spinning wheel repairs

The Copper Sheep