GSI COMMERCE AND CHANNELADVISOR EXTEND STRATEGIC ALLIANCE

Research Triangle Park, NC – November 27, 2007 – ChannelAdvisor, the leading provider of e-commerce channel management solutions announced today that it has extended its strategic alliance with GSI Commerce Inc. (NASDAQ: GSIC), a leading provider of e-commerce solutions, to help online retailers and brands leverage paid search and comparison shopping engines.

Under the alliance, gsi interactivesm, the interactive marketing group of GSI Commerce, will manage GSI partners paid search and comparison shopping campaigns through ChannelAdvisor’s Complete software application designed to:

• provide GSI with an integrated platform for the management, optimization, and reporting of paid search and comparison shopping engine campaigns; and
• offer strategic support, training, and educational services to GSI’s in house team of online marketing specialists.

ChannelAdvisor Complete is an integrated, on-demand solution that provides online retailers and interactive agencies an efficient and profitable way to sell across multiple e-commerce channels including marketplaces, comparison shopping, search marketing and their own e-commerce stores. ChannelAdvisor Complete provides retailers the software and services to become a multi-faceted, profit-driving retailer.

GSI will be utilizing ChannelAdvisor’s paid search and comparison shopping engine tools to offer cutting edge online marketing solutions to GSI partners.

“ChannelAdvisor has proven expertise in helping both retailers and interactive agencies leverage search and comparison shopping engine channels,” says Gerry McGoldrick, GSI vice president of interactive marketing “We look forward to expanding our relationship with ChannelAdvisor and thereby providing our retail customer base a best-in-breed offering.”

“ChannelAdvisor is extremely excited about expanding our relationship with GSI Commerce and allowing them to provide their retailer customer base world-class offerings for search and comparison shopping engine channels,” says Scot Wingo, Chief Executive Officer of ChannelAdvisor. “We look forward to working with GSI to drive more gross online merchandise sales across their broad and impressive customer base.”

About GSI Commerce
GSI Commerce® is a leading provider of e-commerce solutions that enable retailers, branded manufacturers, entertainment companies and professional sports organizations to operate e-commerce businesses. We provide solutions for our partners through our integrated e-commerce platform, which is comprised of four components: technology, customer care, fulfillment and marketing services. We provide e-commerce solutions for approximately 80 partners.

About ChannelAdvisor Corporation
ChannelAdvisor Corporation provides technology and services that enable leading online retailers to maximize their products across multiple e-commerce marketplaces such as eBay, Amazon.com and Overstock.com, comparison shopping engines such as Shopping.com, Shopzilla, Nextag and Google Product Search and search engines such as Google, Yahoo! and MSN. In 2006, ChannelAdvisor managed over $1.6 billion in gross merchandise value (GMV) on behalf of its customers. ChannelAdvisor solutions combine best practices, on-demand software and integration technology to help retailers sell more products, faster, by automating labor-intensive, manual functions so they spend less time optimizing campaigns and more time solving marketing and business issues. ChannelAdvisor's customers include GSI Commerce, Sears, Brookstone, Abebooks and Motorola. ChannelAdvisor Corporation is headquartered in Research Triangle Park, NC with offices in Atlanta, Seattle, the United Kingdom, Australia and Germany. For more information, visit http://www.channeladvisor.com/.

Contact:
Ashley Jones
ChannelAdvisor Corporation
Ph: 919.349.4177
ashleyj@channeladvisor.com