This is what I have so far. I would have about 4 more to add to this list, but either they went out of business or don't carry hub motors anymore
- Lots of selection of kits and motors here.
- weRelectrified.com sells Wilderness Energy kits and brushed motors.
- Rabbittool.com seems to sell hubs and other stuff.
- Electricrider.com has Crystalyte Hubs, Kits, other parts
- ebikes of Canada carries a wide variety of Crystalyte hub motors, advanced batteries, and electronic accessories
- Non hub motors that uses the derailer 4 gearing
- Store that sells both WE and Crystalyte hub motors (and parts)
- Store that sells Go-Hub kit (and parts)