Open Source hardware refers to computer and electronic hardware designed in the same fashion as free and Open Source software. Here you will find a collection of web sites which provide documentation and information about the hardware design of computer systems, peripherals, and other components.
Regular Websites
Provides a list of openly developed cameras and imaging solutions; complete with comprehensive documentation. - Elphel
http://www3.elphel.com/
A Open Source hardware project providing the necessary documentation and information to build and re-build various computer systems and related equipment. - Open Hardware
http://www.openhardware.de/
Offers a fully searchable index of many designs and schematics of computer systems, peripherals, and related components. - OpenCollector Database
http://opencollector.org/
Publishes and provides documentation and related information about hardware modelled on the Lesser General Public License (LGPL) for software. - Opencores.org
http://www.opencores.org/