http://www.usatoday.com/tech/science/space/2008-08-19-history-planet_N.htm
http://en.wikipedia.org/wiki/History_of_the_word_fuck
http://en.wikipedia.org/wiki/History
http://dir.salon.com/story/opinion/feature/2004/10/12/nader
http://www.yourdictionary.com/library/wordhistory.html
http://www.bbc.co.uk/history/worldwars/wwone
http://www.word.com/collegiate/archives/word_history/index.html
http://www.amazon.com/Usborne-Internet-Linked-Encyclopedia-World-History/dp/0746041683
http://www.stanford.edu/~bkunde/fb-press/articles/wdprhist.html
http://www.fun-with-words.com/etymology.html
http://projects.exeter.ac.uk/RDavies/arian/dollar.html
http://www.npr.org/templates/story/story.php?storyId=6559208
http://www.citylights.com/book/?GCOI=87286100734790
http://www.bartleby.com/61/34/W0143400.html
http://www.geocities.com/athens/delphi/1979/trivia.html
http://www.funlol.com/586/History_of_the_F_Word!.html