I've been interested in tiny houses for a while. Here are some links that are fun.
Interesting entry over at the Tiny House Blog about Christiana, an interesting place in Copenhagen. Here's a wiki entry, atlas obscura entry and a youtube video.
More tiny houses here and here.
Earth bags at the Natural Building Blog.
Canopy Cottage, another curious construction over at tiny house.
The Ultimate designer aquaponics. Go thou and drool.