From their mission statement:
“ThinkCycle is an academic, non-profit initiative engaged in supporting distributed collaboration towards design challenges facing underserved communities and the environment. ThinkCycle seeks to create a culture of open source design innovation, with ongoing collaboration among individuals, communities and organizations around the world.
“ThinkCycle provides a shared online space for designers, engineers, domain experts and stakeholders to discuss, exchange and construct ideas towards sustainable design solutions in critical problem domains.”
Good stuff, well worth browsing through.