Moon amateurs invite rover designs from the public - Open Space Exploration Journal - This is meant more to feature the OSEJ blog than the particular post they recently made. A lot of the fairly detailed posts feature open source Google Lunar X PRIZE team FREDNET, but the blog covers other ground, too, including prizes like the N-Prize and America's Space Prize. From their welcome post:
It is our hope that by giving a more accessible look into the open development process of initiatives like Team FREDNET, we can help them attract the support and the volunteers they need to achieve their goals.