Their catch phrase is 'design will save the world' which I love. They're worth a look when you have a spare minute (or 3 hours!) As stated on their website, Inhabitat.com is a weblog devoted to the future of design, tracking the innovations in technology, practices and materials that are pushing architecture and home design towards a smarter and more sustainable future.
Here are some pictures that they posted recently about a home in the UK, rather aptly named The Hobbit House. It cost just 3000 pounds (and a lot of ingenuity) to build.