The Journey Wheel: Inspired by the Indian charkha, but has foot treadles and multiple spinning ratios. Crafted out of cherry wood, and folds into a small carrying case.
Cotton spinning travel kit. Uses cat combs as cotton cards.
"Wee Spin" tiny handmade spinning wheel. Footprint measures 8.5" x 12", wheel is 16" high, with another inch or two for the flyer.
The Ettrick Windwheel - unique portable design from a Tasmanian wheel maker.
Gorgeous rustic spinning wheel
Louet S15 Spinning wheel, painted by Kinixys on Ravelry
Norwegian spinning wheel, built in 1858, still in beautiful working condition. Has original green paint and hand-forged axle.
Infinity spinning wheel
Eisaku Noro - Industrial Yarns. This page links to a 26-page publication called "Manufacturing of Noro Yarn, From Farm to Product." Very helpful in thinking about spinning Noro-like yarns.
"Fractal Spinning" how to article on Knitty