Note: The list below was originally published in the Instructor's Guide to the third edition of The Basic Practice of Statistics (BPS) by David Moore. In addition, I occasionally add new resources to this; they are given at the bottom of this page.

The Worldwide Web has made great amounts of information—of varying degrees of usefulness—easily available. Here are some worthwhile sites with resources for use in conjunction with BPS. Some of these sites have links to other interesting locations. The fluid nature of the Internet means that addresses may change, and other resources show up from time to time; Web searches for phrases such as "statistics tutor" or "statistics applets" will almost certainly yield some useful results.

First, some general collections:

• Clay Helberg maintains a very large collection of probability and statistics links (no resources) here.
• Carnegie-Mellon University maintains StatLib, an electronic repository of things of statistical interest, including data sets. Note in particular the "Data and Story Library," an on-line source related to the EESEE collection of case studies that is included on the BPS CD-ROM.
• The Journal of Statistics Education, an electronic journal of the American Statistical Association, contains much of interest to teachers of statistics.
• The Chance Web site, hosted by Dartmouth College, provides timely "current events" material to supplement a statistics course.
• If you want to find some examples of "bad statistics," visit these sites, whose names are self-explanatory: junkscience.com and mathmistakes.com.

It is useful for students to visit "real statistics" sites to get a glimpse of the richness of the subject:

• Ask students to locate facts about their home counties at the Census Bureau, or read the latest press release about employment and unemployment from the Bureau of Labor Statistics. Look under "Economic News Releases" and then under "Employment & Unemployment" for releases with the title "Employment Situation." Also, the unified gateway to federal statistical agencies is comprehensive but a bit overwhelming.
• Find current Gallup Poll press releases and Gallup's explanations of how sample surveys work here. The National Council on Public Polls has statements on "Principles of Disclosure" and "20 Questions for Journalists" that make interesting reading.
• The abstracts of current medical research in the New England Journal of Medicine demonstrate that you must know some statistics to read medical literature. Choose a clinical trial and an observational study from the available abstracts, then ask students to search for them by subject and to write a description of the design, the explanatory and response variables, and the conclusions.

Applets deserve separate mention. You can find a large number of attractive interactive animated simulations that demonstrate important facts about probability and statistics. We recommend these for class demonstrations as well as for student work, particularly if you are not using software in your course. Most are at university locations, and their URLs change often.

• First, we must mention the applets at the BPS companion website.
• David Lane of Rice University has an excellent collection of Java applets and links to other similar sites here.
• Also, look at the collection by Todd Ogden and R. Webster West at the University of South Carolina, here.
• Another nice applet collection, from the University of Newcastle in Australia, is SurfStat. This URL has changed often in the past, so you may need to search for "surfstat."
• A collection emphasizing probability, by Charles Stanton of California State University at San Bernardino.
• Another that is especially strong in probability (look at the poker hand applet) is by Kyle Siegrist of the University of Alabama at Huntsville: here.
• You can estimate the value of π by throwing virtual darts here.
• Want to select an SRS or do experimental randomization, even for large samples, and bypass the table of random digits? Visit the Research Randomizer.

Additional resources (not included in the BPS instructor's guide):

• David Neal's TI-83 calculator programs for use with BPS. Dr. Neal wrote the calculator manual that supplements BPS.