<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54cfcd91c6c96_-_tech_concepts_04_1210-de-62975767.jpg>
<http://www.popularmechanics.com/technology/a6422/10-tech-concepts-you-need-to-know-for-2011/>