The History Channel has a content-rich page called “The Declaration of Independence.” Of particular value is a copy of the Declaration‘s text with historical and interpretative commentary from Elizabeth Hovey, adjunct professor of history at John Jay College of Criminal Justice, The City University of New York. (Make sure you have your pop-up blocker turned off to use this function.)
Hovey’s interpretations respect natural law traditions and display a solid understanding of Jefferson’s political theory. You’ll find far less explanation, though, of the bill of grievances in the Declaration, which is the longest section in the document, as well as no explanation of Congress’ reference to prior efforts to reconcile with Great Britain.
Other material at the site such as biographical information and a brief history of the Declaration answers basic questions most students might have about this founding document. Teachers will also find some decent open-source lesson plans for their use. All in all, this is a useful and accessible site that would benefit the history buff, social studies teacher, or high-school student.