Open Hardware Foundation
The Open Hardware Foundation is a non-profit corporation whose charter is to promote the design and production of open source and open documentation hardware.
* http://www.openhardwarefoundation.org/

OpenCores
OpenCores is a loose community of people who are interested in developing digital open source hardware through electronic design automation, with a similar ethos to the free software movement. OpenCores hope to eliminate redundant design work and slash development costs.
* http://www.opencores.org/
* http://en.wikipedia.org/wiki/OpenCores