While the USPS gets its share of grief from consumers regarding in
person customer service, someone is getting things right in regards to
its web presence. The USPS is the 2005 winner of WebAwards
Best Government Website Annual competition. While the WebAwards
judges specifically singled out the USPS postage rate calculator, the
entire USPS web site is
extremely well done. Attractive, informative, and easy to
navigate with plenty of handy tools, you could do worse than using it
as a model for your own site.