http://www.deckcheck.net/ http://www.msnbc.msn.com/id/3033063/ns/technology_and_science-space http://channel.nationalgeographic.com/series/naked-science/3899/Overview#tab-Overview http://www.wisegeek.com/what-is-the-kardashev-scale.htm http://evilhow.com/tiki-index.php?page=How+to+destroy+the+planet