I wanted to draw attention to a new site called eLUTHERIE.org. (I am a beta tester, but am not part of it)
This used to be buildingtheergonomicguitar.com and is run by guitar builder Rick Toone and Rob Irizarry. The purpose is to build a community around sharing of ideas and designs and giving builders and inventors a forum to review but also to commercialize ideas. I haven't been around CNCzone long enough to comment about the members, but I would assume that a lot of people here fall into the categories of users that would benefit.