http://orbitingdigitialfabrication.weebly.com/from-2d-into-3d-the-transformation.html Great Image Gallery of 2d to 3D Design
https://www.curiositymachine.org/challenges/ Gallery of Design Challenges from Curiosity Machine.
http://tinkering.exploratorium.edu/projects & http://tinkering.exploratorium.edu/tinkerers Projects from the tinker studio in the Exploratorium & profiles of professional “tinkers”
http://openmaterials.org/ OpenMaterials is a research group dedicated to open investigation and experimentation with DIY production methods and uses of materials.
http://make-good.com/ Documentation of social making. Great inspiration for design challenges that are meaningful. Scale, modify, and inspire projects in your community.