<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x552/54feafd619761-ghk-barnes-and-noble-nook-xl.jpg>
<http://www.goodhousekeeping.com/electronics/best-e-reader-reviews/g220/e-reader-reviews/>