Most of the datasets are described in the book Statistical Analysis and Data Display.
AudiencePercent is from personal communication by the market researcher who did the study.
SFF8121 is student evaluations of my class compared to the average of all graduate classes in the Spring 2010 semester. Personal communication from the Temple University Office of the Provost to me.
ProfDiv is "Profit-and-Dividend Status of 348 Corportations in the United States for the period from 1929 to 1935" from Brinton WC (1939), Graphic Presentation. Brinton Associates. http://www.archive.org/details/graphicpresentat00brinrich.
NZScienceTeaching is from New Zealand Ministry of Research Science and Technology(2006), “Staying in Science." This URL is no longer valid.
PoorChildren is from “Poor Children, Working Parents", Analysis of data from the CensusBureau's American Community Survey. Comparison of Census areas of 100,000 or more people, based on samples from 2005 to 2009.
Source: Data from the U.S. Census Bureau's American Community Survey; analysis by Andrew A. Beveridge, QueensCollege. Copyright 2011 The New York Times Company
Naomi Robbins and I discuss the PoorChildren example in the Forbes online column: http://www.forbes.com/sites/naomirobbins/2011/12/20/alternative-to-charles-blows-figure-in-newts-war-on-poor-children-2/
Heiberger, Richard M. and Holland, Burt (2004b). Statistical Analysis and Data Display: An Intermediate Course with Examples in S-Plus, R, and SAS. Springer Texts in Statistics. Springer. ISBN 0-387-40270-5.
Documentation reproduced from package HH, version 3.1-32. License: GPL (>= 2)