Great speech by Cameron Sinclair
A great speech, really inspirational:
Cameron Sinclair on TED Talks (Google Videos)
TEDPrize winner Cameron Sinclair is founder of Architecture for Humanity, and author of Design Like You Give A Damn: Architectural Responses to Humanitarian Crises In this presentation, he demonstrates the need for a design response to humanitarian crises, and unveils his TEDPrize wish: to create a community that actively embraces open-source design to generate innovative and sustainable living standards for all.
More TEDtalks: http://www.ted.com/tedtalks/