"Constitution Day commemorates the formation and signing of the U.S. Constitution by thirty-nine brave men on September 17, 1787, recognizing all who, are born in the U.S.or by naturalization, have become citizens." - ConstitutionDay.com
Visit the National Constitution Center web site to explore their new, Interactive Constitution.
With the Interactive Constution, you can select an article or amendment, and learn more about that section. It also includes links to interpretations as well as articles that discuss the different interpretations of the Constitution.
The Constitution Center provides a variety of podcasts, including discussions by Constitutional scholars. Listen or subscribes at the links below.