Tom Richey
Tom richey.net: The u.s. Constitution: Framing, Principles and Ratification [Ppt]
Presents key ideas for examining how the Articles of Confederation were replaced with the Constitution and the compromises that were reached during debates.
Houghton Mifflin Harcourt
Harcourt: Biographies: James Madison
A brief biography of James Madison. Find out why James Madison was called the father of the constitution. Learn how his life affected the United States. (In Spanish)