Stamps.com CEO says Amazon has 'amazing' logistics network, dumps USPS Business InsiderStamps.com crashes nearly 50% after discontinuing partnership with USPS CNBCStamps.com stock plummets more than 50% after it ends partnership with the US Postal Service CNNStamps.com Wipes Off 50% of Market Cap as Key USPS Deal Ends BloombergStamps.com threw USPS under the bus and cratered 50% because it's betting big on Amazon shipping CNBCView full coverage on Google News