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  

Ontario Handspinning Seminar

Textile Museum of Canada

Ontario Fibreshed                                

Wellington Fibres                                               

Upper Canada Weaving

Iron Cauldron Colour Works

Ken Hyatt, spinning wheel repairs

The Copper Sheep