Maker's Hub is a virtual hacker space/services marketplace that connects makers with complementary devices and skillsets, in particular things like paper cutting, laser cutting, milling, 3D printing, and circuit prototyping.
Makers who need access to an expensive device for their idea will no longer need to front the expense and time required to purchase and learn how to use such devices or develop those skills.
Makers who own these devices and have the necessary skills will be able to utilize them to make additional money on the side by "bidding" on other Makers projects.
The maker movement in general is undergoing exponential growth in the US and worldwide [1], and recent estimates suggest that over 57% of the US population are considered be makers [2].
[1] http://thehustle.co/the-diy-maker-movement-survives-by-doing-the-opposite-of-whats-smart
[2] http://www.usatoday.com/story/money/business/2013/10/14/martha-stewart-column-meet-the-makers/2980701/