http://curriculum.qed.qld.gov.au/kla/eda/datasets.htm
http://lib.stat.cmu.edu/DASL/
 http://www.m-ms.com/factory/history/faq1.html
 http://www.census.gov/dmd/www/sch1.htm
 http://www.dot.gov/airconsumer/index1.htm
 http://www.nielsenmedia.com/index.html
 http://www.nytimes.com/library/magazine/home/20000109mag-talbot7.html
http://exploringdata.cqu.edu.au/sctrplot.htm
 http://www.gallup.com/index.html