I monitor a recently added USPS.com page called "DMM Advisory"
http://pe.usps.gov/dmmAdvisory.asp
The USPS uses this message board to communicate DMM and Rates and Classification changes to interested parties such as mailers and mail preparers.
On June 1 the DMM Advisory posted this link
http://pe.usps.gov/DMMAdvisory.asp?Dest=dmmadvisory060106.htm
which brings users to a very informative and easy to read Frequently Asked Questions page, pertaining to to 2007 Rate Case. This is information pertinent and beneficial to all, take a look.
This is just one of the great resources we track for you here at WBI. Please feel free to share your favorite USPS resources, either by commenting this blog, or sending to me directly.
Best wishes,
Lisa