The Open Source Hardware Association invites submissions for the fourth annual Open Hardware Summit, to be held September 6, 2013 at the Massachusetts Institute of Technology.

The Open Hardware Summit is the world’s first comprehensive conference on open hardware; a venue to discuss and draw attention to the rapidly growing Open Source Hardware movement. The Open Hardware Summit is a venue to present, discuss, and learn about open hardware of all kinds. The summit examines open hardware and its relation to other issues, such as software, design, business, law, and education.

They are seeking proposals for talks, posters, and demos from individuals and groups working with open hardware and related areas.  Submissions are due by JUNE 21, 2013. Please see the complete call for papers for additional details.

Topics of interest for the summit include, but are not limited to:

Digital fabrication

Means of supporting collaboration and community interaction

Open source business and legal models

Manufacturing models

Open Source Hardware Licenses

Software/Hardware

Sustainability

Communities of Practice

Other topics related to the intersection openness and hardware