Books nourish our minds and make great gifts, but let's be honest — we kill a lot of trees to make them. Sony's Reader Digital Book might alleviate the green bibliophiles guilt. Its high-tech display looks a lot like low-tech paper, so it's easy on the eyes. And with up to 7,500 page views per charge, it's surprisingly energy-efficient. Download tomes at the Sony Connect store (the free software is similar to iTunes); you can also use the Reader to view PDFs and Word documents, and to listen to MP3s.

Story by RJ Gambale. This article originally appeared in Plenty in November 2006. This story was added to MNN.com in July 2009.

Copyright Environ Press 2006.