Shapeways - Shapeways - 3D Printing Service and Marketplace
Notebook.ai - A smart notebook that grows and collaborates with you
3D Hubs - Airbnb for 3D printing
Bookblock - Design-led custom notebooks & stationery.
i.materialise - i.materialise is an online 3D printing service, community and marketplace.
Beastnotes - A notebook for online courses