February 17, 2013 — At last, a good use for that chemistry book you last cracked in 2001. Green Textbooks finds new homes for textbooks, software, study guides and related educational material up to 20 years old, saving them from landfills and providing a valuable source of knowledge to individuals who lack other options. Every book donated to the organization is either used or recycled into new paper products. Photo by Sarah Cady (Flickr | Creative Commons).