Shapeways has really established themselves as the premier destination for 3D printed goods. There are other companies out there that are starting to gain a little momentum, such as Sculpteo. Many people wonder if Amazon will ever try and challenge the Shapeways business model. A patent that I discovered points in this direction. Could Amazon really be planning to go all out and challenge Shapeways? Read this article at: http://3dprint.com/3612/amazon-patents-3d-printing/