World's Leading Agricultural Publisher CABI Selects Collexis to Develop Knowledge Discovery Application and Semantic Search Solutions

Collexis to Develop a Pilot Program That Expands Research and Networking Capabilities for CABI

COLUMBIA, SC – April 23, 2008 – Collexis Holdings, Inc. (OTCBB: CLXS), a leading developer of high definition search and knowledge discovery software, announced today that CABI, a not-for-profit international organization specializing in scientific publishing, research and communication, has selected the company to develop a knowledge discovery application and provide semantic search solutions by instituting a Knowledge Dashboard as a pilot implementation.

Collexis will analyze a vertical of CABI content in a cutting edge application that will provide expert profiles and trends related to agriculture and the environment—enabling the organization to expand its offering from one of pure content provisioning to discovery. The dashboard will be developed along with conceptual mapping capabilities that will broaden and expand upon the organization’s existing resources and total offering by providing a succinctly compiled site and portal for researchers and publishers to connect with one another and collaborate. The organization’s flagship product, the CABI Abstracts Database, covers the world’s literature in agriculture, the environment and related disciplines, with its detailed subject indexing and classification ensuring that this information is retrievable and in context.

“We have been looking for technology partners who go beyond standard solutions like search applications into expertise and knowledge management, says Andrea Powell, CABI’s executive director, publishing. “The gathering and contextualizing of information in our subject areas are key success factors for our organization – and this pilot project will explore and prove how the unique Collexis Fingerprint and expert profiling technology can help CABI achieve its business objectives.”

We are very excited to work on this project with CABI, says Christian Herzog, Collexis executive vice president and general manager of life sciences. By using our knowledge engine to fuel knowledge discovery applications like the Knowledge Dashboard and pre-populating the site with expert profiles generated from the Collexis technology, we’re prepared to help make CABI the knowledge hub in agriculture by providing them with this exciting professional social networking opportunity.

This pilot program represents the first of many potential engagements between CABI and Collexis.

About CABI
CABI is a not-for-profit international organization that improves people’s lives worldwide by providing information and applying scientific expertise to solve problems in agriculture and the environment. Its mission and direction is influenced by its 44 member countries who help guide the activities undertaken as a business. These include scientific publishing, projects and consultancy, information for development and mycological services. CABI’s activities contribute directly to achieving global development objectives, particularly those concerned with poverty reduction, environmental sustainability and partnership for development. For more information on CABI, go to www.cabi.org.

About Collexis Holdings, Inc.
Collexis Holdings, Inc., a leading developer of high definition search and knowledge discovery software since 1999, headquartered in Columbia, South Carolina (USA) with major operations in Cincinnati, Ohio, Geldermalsen, the Netherlands and Cologne, Germany. Collexis now offers the world’s first pre-populated professional social network for life science researchers, www.biomedexperts.com. Collexis’ proprietary technology builds conceptual profiles of text, called Fingerprints, from documents, Websites, emails and other digitized content and matches them with a comprehensive list of pre-defined “fingerprinted” concepts to make research results more relevant and efficient. This matching of concepts eliminates the ambiguity and lack of priority associated with word searches. The results are often described as “finding needles in many haystacks.” Through this novel approach, Collexis can build unique applications to search, index and aggregate information as well as prioritize, trend and predict data based on sources in multiple industries without the limitations of language or dialect. Collexis’ current clients in the public, private and academic sectors include the Mayo Clinic; Johns Hopkins University; the University of California, San Francisco; the University of South Carolina; Erasmus University Library; Bristol-Myers Squibb; Lockheed Martin; the World Health Organization; Wellcome Trust; the National Institutes of Health; and the U.S. Department of Defense. Shares of Collexis common stock are traded under the symbol CLXS on the OTC Bulletin Board (OTC BB). For more information, visit www.collexis.com.

Forward-Looking Statements
Some of the statements made in this press release may constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on management’s current expectations and include known and unknown risks, uncertainties and other factors, many of which the company is unable to predict or control, that may cause the company’s actual results or performance to differ materially from any future results or performance expressed or implied by such forward-looking statements. These statements involve risks and uncertainties, including risks and uncertainties associated with the development of services for CABI. These risks and uncertainties are in addition to other factors detailed from time to time in the company’s filings with the SEC, including the section entitled “Risk Factors” in its transition report on Form 10-KSB for the period ended June 30, 2007, as amended. The company cautions investors that any forward-looking statements made by the company are not necessarily indicative of future performance. The company is not responsible for updating the information contained in this press release beyond the published date, or for changes made to this document by wire services or Internet services.