The U.S. Postal Service (USPS) provides the following information online:

USPS testimony before Congress

USPS speeches

USPS press releases

USPS financial information including:

  1. Annual reports
  2. Comprehensive statements and 5 year plans
  3. 10Q (quarterly reports)
  4. 10K forms
  5. FY2009 appropriations request (December 11, 2007)

Source: U.S. Postal Service website.