In the following video, Motley Fool consumer goods analyst Blake Bos takes a look at three of the most important stories coming out of the 3-D printing world that investors need to be aware of today. He discusses Microsoft's (MSFT -0.97%) new 3-D printing support feature in the updated version of its Windows 8 operating system, tells us about eBay's (EBAY 0.52%) Exact app for customizing and ordering 3-D-printed objects, and takes a look at why Moore's Law may now apply to the 3-D printing world, as performance goes up, and prices come down.