Understanding Government Debit

Variable Interest 
  

Variable Rate Demand Note - VRDN

Government Finance Officers Association

Debit Ceiling

Explaining the debt ceiling  (Audio)

United States public debt 

United States public debt

With much at stake, Asia voices confidence in U.S. debt

Birth pains

United States Treasury security

"Information is the Currency of Democracy." - Thomas Jefferson.

The above is the best I have found to date.

The U.S. National Debt and How It Got So Big

 U.S. Treasury

Treasury Direct 

Interest Expense on the Debt Outstanding