SAN CARLOS, CA — August 29, 2007 — Mark Logic^® Corporation, provider of the industry’s leading XML content platform, today announced that Simon & Schuster, Inc. has selected Mark Logic to power its digital infrastructure to store, transform, syndicate and deliver XML content.

“MarkLogic Server is a key component of our digital infrastructure as we build our digital archive and distribution system to exploit exciting new digital possibilities,” said Anne Lloyd Davies, senior vice president and chief information officer, Simon & Schuster, Inc. “MarkLogic will provide granular access and control over our XML content, allowing us the flexibility to repurpose, syndicate, and create new formats for our information. Our marketplace is rapidly changing, and Mark Logic will give us the agility we need to adapt to market shifts and stay at the forefront of publishing in the digital age.”

“Simon & Schuster is a recognized worldwide as a major force in the world of publishing,” said Dave Kellogg, chief executive officer of Mark Logic Corporation. “We are pleased to partner with them and to help them unlock the value of their XML content to support innovative new digital publishing initiatives.”

Mark Logic works with leading publishing and media companies to help them turn today's business challenges into opportunities. Using MarkLogic Server, publishers can speed the delivery of new products, enhance or extend to offer differentiated product features, experiment with new digital content business models, prototype and deliver multiple products on a single infrastructure, aggregate and transform content from tens to hundreds of thousands of sources, and repurpose content among various products.

About Simon & Schuster

Simon & Schuster, part of the CBS Corporation, is a global leader in the field of general interest publishing, dedicated to providing the best in fiction and nonfiction for consumers of all ages, across all printed, electronic, and audio formats. Its divisions include Simon & Schuster Adult Publishing, Simon & Schuster Children's Publishing, Simon & Schuster Audio, Simon & Schuster Digital, and international companies in Australia, Canada, and the United Kingdom. For more information, visit our website at www.simonsays.com .

About Mark Logic Corporation

Mark Logic Corporation is the provider of the industry’s leading XML content server. Mark Logic works with providers of information products to accelerate new product creation, deliver products through multiple channels, integrate content from different sources, repurpose content into multiple products, build custom publishing systems, and mine content to find previously undiscovered information. MarkLogic Server does this by enabling companies to load, query, manipulate, and render XML content using the W3C–standard XQuery language. Designed for high performance and scalability, MarkLogic Server can deliver millisecond response times against multi–terabyte contentbases. Mark Logic is privately held and backed by Sequoia Capital and Lehman Brothers. For more information or to download a free trial copy of MarkLogic Server, please visit www.marklogic.com .