3YOURMIND - Compare professional 3D printing services for free. 3YOURMIND is an additive manufacturing platform for your team to manage your 3D printers and suppliers.
Obsidian 3D Printer - The $99 3D printer
i.materialise - i.materialise is an online 3D printing service, community and marketplace.
Form 2 - The most advanced desktop 3d printer ever created
Shapeways - Shapeways - 3D Printing Service and Marketplace
ZMorph - A multi-fab 3D printer that enables fast product prototyping