Surf and SUP shop in Kincardine, Ontario, Canada. Rentals, classes, tours. Surf, SUP, skate, scoot, snow sports gear and apparel. Long term rentals delivered in the area for free.
Surfer magazine article with great pictures of surfers in Hammond (Indiana), Chicago (Illinois) and South West Lake Superior.
Absolutely fabulous videos with basic bodyboarding instructions by Tribord. They have 2 playlists: Bodyboard Coaching (english) and Coaching Bodyboard (français). The Duck Dive maneuver is posted twice in the French version, but not in the English one.
Just a search on Bing for "surfing great lakes video".