Open Hardware Hub. From the about page… [via]
Open Hardware Hub is the first and only place where you can upload, share, and collaborate on open source hardware creations. Our goal is to become the number one place on the internet for people to learn, design, and build together. We want to provide a compelling community where builders around the world can work together on whatever they have a passion for. Sharing knowledge is vital to making our world a better place, and by connecting intelligent builders, we hope to fuel the fires of innovation.
Open Hardware Hub - [Link]