Mercent Signs Fossil, Orvis, Bluefly, National Business Furniture, and Others; Doubles Tier 1 Customer Count and Fuels Sales Across Online Retail Channels LAS VEGAS, NV--(Marketwire - September 22, 2009) - SHOP.ORG ANNUAL SUMMIT -- Mercent™, a leading provider of on-demand marketing solutions for retailers, announced today it has doubled the...