Fair Companies have a lot of videos related to living in small spaces and particularly living a sustainable life. I stumbled across their site after reading an article on Apartment Therapy a few years ago and continue to revisit for more inspiration for my office and storage solutions for the house.
I have a fascination with small spaces and the extension of the space through clever storage and engineering. Rosa and Robert Garneau have created a multi-functional living space out of 550 square feet of NYC apartment. I highly recommend watching the video and reading the accompanying article.