LOS ANGELES, CA–(Marketwire – Aug 18, 2011) – Stamps.com® ( NASDAQ : STMP ), the leading provider of USPS® postage online and shipping software to approximately 400,000 customers, today announced its new integration with Teapplix, an e-commerce solution that imports orders from multiple marketplaces into one web page, facilitates shipping and exports sales data into QuickBooks® accounting …
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