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SAN CARLOS, CA — February 21, 2008 —MarkLogic Corporation, a leading provider of infrastructure software for information applications, today announced it has been selected as one of the KMWorld “100 Companies That Matter In Knowledge Management” for 2008. This marks the fourth consecutive year that MarkLogic has received this honor from KMWorld.

Established in 2000, KMWorld’s 100 Companies that Matter In Knowledge Management recognizes companies that have helped create, enhance or define a market, and have a remarkable capacity for agile, customer-driven innovation. This list is compiled by knowledge management practitioners, theorists, analysts, vendors and their customers and colleagues.

“We have long held that the true essence of knowledge management is an attitude, a single-minded commitment to improvement,” said Hugh McKellar, editor-in-chief of KMWorld. “And companies on our list simply must emphasize an abiding determination to serve their most important constituency: their customers, They must also show agile innovation combined with a full understanding of the forces that affect, and will affect, their customers.”

“We’re honored to have been selected as one of KMWorld’s 100 companies that matter for the fourth consecutive year,” said Andy Feit, senior vice president of marketing for MarkLogic Corporation. “Our consistent recognition by the industry demonstrates our commitment to delivering solutions that empower customers to solve their most critical content challenges.”

A complete list of winners can be found at: www.kmworld.com.

About KMWorld

The leading information provider serving the Knowledge, Document and Content Management systems market, KMWorld informs more than 50,000 subscribers about the components and processes – and subsequent success stories – that together offer solutions for improving business performance. KMWorld is a publishing unit of Information Today, Inc.