ChannelAdvisor and Tier 1 Asset Management Announce eBay Partnership
Tier 1 Becomes First International Service and Logistics Partner

Research Triangle Park, NC – May 10, 2005 – ChannelAdvisor, the leading provider of channel management solutions (CMS), announced today the largest customer win in the UK since it opened its office in February 2005. ChannelAdvisor’s UK office is located in London . Tier 1 Asset Management, the top computer merchant on eBay (NASDAQ: EBAY) UK has chosen ChannelAdvisor’s software and solutions as its infrastructure to help scale their business across multiple online channels. In addition, ChannelAdvisor has named Tier 1 as their first International service and logistics partner. Also, ChannelAdvisor and Tier 1 will work together to enable large UK Corporates to leverage eBay and other online channels.

Seven years ago, Tier 1 launched on eBay as one of the first sellers offering end-of-life IT equipment. Tier 1 specializes in managing the disposal and remarketing of redundant IT equipment for corporate organizations, including many listed on the FTSE 250 such as Toshiba, IBM, Sun and Hewlett Packard. You can find their products online on eBay UK under the seller id ‘tier1-online’.

“We evaluated and used other auction management companies and we chose ChannelAdvisor’s channel management solutions,” says Jonathan Rose, Managing Director of Tier 1 Asset Management. “We are very excited about growing our eBay sales and helping launch US customers in Europe in conjunction with ChannelAdvisor.”

Tier 1 will enable ChannelAdvisor US customers, as well as UK based Corporates to sell their products in Europe and provide these customers with the following:

• Posting and auction management services
• Shipping & fulfillment
• Analyzing & advising on eBay strategies to meet business objectives
• 24/7 Customer Service
• Auction design, content and launch strategy

ChannelAdvisor provides software that enables top eBay sellers, small businesses and large Corporates to manage and automate the sale of products across multiple online channels such as eBay and Overstock.com (NASDAQ: OSTK), Shopping.com (NASDAQ: SHOP), and Shopzilla.

“Due to the recent growth of eBay UK , US customers and UK Corporates have shown considerable interest and we look forward to introducing them to Tier 1,” says Scot Wingo , CEO and President of ChannelAdvisor. “We continue to take important steps to broaden our geographic reach and are poised to bring our channel management software and services to the growing international market.”

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 Seattle, the United Kingdom and Germany. For more information, visit http://www.channeladvisor.com/.