Solar-powered window blinds, soak up sun by day, illuminate the room at night. Interesting concept for emergency power outages. (I poked around looking for these and didn't find them available. Great concept though )
Solar Houses, 1945. A seminal publication in the history of "green design. From the Association for Preservation Technology (APT) - Building Technology Heritage Library, an online archive of period architectural trade catalogs. It contains hundreds of old house plan catalogs. Select your era and flip through the pages.
DIY Trombe Wall Made From River Rock and Wire : This is nothing more than a gabion of wood and wire mesh, filled with river rock, creating a thermal mass that absorbs heat all day and releases it at night.
Passive Solar House Design Using a Two-Story Trombe Wall - Green Homes