Along with each Web site, a summary of the site's contents identifies important primary source documents such as constitutions, treaties, speeches, court cases, statistics, and other official documents. The questions and activites invite the students to log on to the Web site, read the information presented, interact with the data, and analyze it critically to answer such questions as: Who created this document? Is the source reliable? How is the information useful and how does it relate to present-day circumstances? If I were in this situation, would I have responded the same way as the person in charge? Strengthening these critical thinking skills will help prepare students for both college and career in the 21st century.