OVERSTOCK.COM AND CHANNELADVISOR ANNOUNCE STRATEGIC ALLIANCE
ChannelAdvisor Complete™ Solution Offers Online Retailers Free Integration to Overstock.com Shopping

Research Triangle Park, NC and Salt Lake City, UT – March 21, 2007 – ChannelAdvisor, the leading provider of channel management solutions (CMS) and Overstock.com (NASDAQ: OSTK), the popular online discount retailer, announced today that the companies have implemented  new software systems  designed to bring online retailers’ merchandise to Overstock.com by leveraging the ChannelAdvisor Complete™ platform.

ChannelAdvisor Complete is the first channel management solution to fully integrate with Overstock.com, enabling online retailers to list their merchandise and process orders placed on the Overstock.com shopping site from a single interface.

The tight integration of the two offerings will benefit online retailers such as Designer Athletic, a leading online retailer of quality name brand overstocks and closeouts, including footwear, designer apparel, and athletic gear.

“Expanding our sales into new marketplaces is important to the future growth of our business,” said George Trantas, President of Designer Athletic. “With the implementation of the ChannelAdvisor solution, we will be able to widen our consumer reach and help Overstock.com provide a more complete shopping experience for their customers.”

In conjunction with this announcement, ChannelAdvisor will waive all ChannelAdvisor fees associated with selling via Overstock.com through March 30th 2008.

“ChannelAdvisor clearly understands the rapidly evolving needs of today’s online retailers and this shows in the retail-focused solutions they have developed,” says Patrick Byrne, Chief Executive Officer of Overstock.com. “Overstock.com is the perfect marketplace for online retailers to sell their high-quality, brand name products, and we are extremely excited to enhance our relationship with ChannelAdvisor.”

“By integrating Overstock.com into our platform, ChannelAdvisor continues to provide online retailers the solutions they need to become multi-faceted and innovative retailers,” says Scot Wingo, Chief Executive Officer of ChannelAdvisor.

Online retailers can learn more about this strategic alliance and how to start selling on Overstock.com at www.channeladvisor.com/overstock.

About ChannelAdvisor Corporation
ChannelAdvisor provides technology and services that enable leading online retailers to maximise their profits across multiple e-commerce channels including marketplaces such as eBay and Amazon, comparison shopping engines such as Shopping.com, Kelkoo, Pricerunner and Google Product Search and paid search on Google, Yahoo! and MSN. ChannelAdvisor manages more than $2.5 billion in annualised GMV (gross merchandise value) on behalf of its 5,500 clients worldwide. ChannelAdvisor solutions combine best practices, on-demand software and integration technology to help retailers sell more products, faster, by automating labour-intensive, manual functions so they spend less time optimising campaigns and more time solving marketing and business issues. ChannelAdvisor's customers include Vodafone, 3M, Sears and eBags. ChannelAdvisor Corporation is headquartered in Research Triangle Park, NC with offices in Atlanta, Seattle, the United Kingdom, Germany and Australia. For more information, visit http://www.channeladvisor.co.uk.

Contact:
John Hayes
ChannelAdvisor UK Ltd
john.hayes@channeladvisor.com