Constitution Day -- September 17th: Web Resources for Constitution Day

The National Archives has links on the Constitution with an outstanding collection of primary source documents

The United States Senate's history page: "In 2004, Senator Robert C. Byrd of West Virginia included key provisions in the Consolidated Appropriations Act of Fiscal Year 2005 designating September 17th of each year as Constitution Day and requiring public schools and governmental offices to provide educational programs to promote a better understanding of the Constitution."