Centra Expands Presence in Asia Pacific Region

LEXINGTON, MA and SYDNEY, AUSTRALIA (September 17, 2002) – Centra (NASDAQ: CTRA), the leading provider of business software solutions for eLearning and real-time collaboration, today announced that it has established a new sales and service support office in Australia. The new office expands Centra’s ability to acquire, manage and service clients in one of the fastest-growing regions in the world. In the last 12 months alone, Centra has added to the roster of customers in the region, including British American Tobacco, Lundbeck Pharmaceuticals, Open Access University, Queensland Rail, and Toyota Motor Corporation.

Industry software veteran, Mr. Nigel Wilson, has been appointed to the position of country manager and will oversee the sales and service of Centra products in Australia and New Zealand, reporting to Mr. Steve Thomas, Managing Director of Sales Operations for Centra in the Asia Pacific region. Prior to joining Centra, Mr. Wilson held several sales, marketing, and technical positions at Appcon, Lotus, and Adobe.

“In recent months, we have experienced heightened demand for our award-winning solutions in every market and industry sector across the region,” said Mr. Thomas. This new sales center gives us greater presence in the growing Asia Pacific market, and enables us to provide direct service to our clients there. The addition of Mr. Wilson’s experience to our team will also enable us to forge stronger partnerships in the region and ensure our continued momentum there as a company.”

Centra’s new headquarters for Australia and New Zealand is located in Sydney, Australia. The office telephone number is +61 2 8901 4062.

Scalable Software Solution for eLearning and Collaboration

Used by more than 900 companies, government agencies, and universities worldwide, Centra’s scalable software solutions are based on CentraOne(, an open and extensible Web collaboration platform. Leveraging the core capabilities of the platform, Centra offers a suite of compatible, real-time Web collaboration applications, content composition tools, and self-service knowledge delivery systems that can be quickly installed on-site using Centra’s rapid deployment methodology, or conveniently accessed through Centra’s secure, full-service ASP. Centra’s products – including interactive Web meetings, virtual classrooms, and large-scale conferences – ensure universal access to users through firewalls and proxy servers, and deliver full-performance IP audio conferencing, streaming video, application sharing, and dynamic multimedia over low-bandwidth network connections through a standard browser interface.

About Centra

Leading with an undisputed track record of helping millions of users to increase revenue and improve overall business performance, Centra provides Web collaboration solutions that enable the delivery of information in a variety of live and self-service formats, and add value through unmatched capabilities to capture interactions and content, personalize and manage this information, and instantly re-use it across the enterprise. Today hundreds of global organizations across every industry and market sector choose Centra, including Cingular Wireless, Cadbury Schweppes, Citigroup, AT&T, Procter & Gamble, McKesson, Merck, Nationwide Insurance, Sysco, and Stanford University. Centra’s products are bolstered by a vital ecosystem of strategic partners, including PwC Consulting, Deloitte Consulting, EDS, Microsoft, SAP, Siebel, Cisco, and SmartForce. Headquartered in Boston’s technology corridor, Centra has sales offices throughout North America, Europe and Asia. For more information, visit www.centra.com.

Safe Harbor Statement

With the exception of the historical information contained in this release, the matters described herein contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including but not limited to, statements concerning management’s expectations regarding future results of operations, statements that involve risk and uncertainties that may individually or mutually impact the matters herein, and cause actual results, events and performance to differ materially. These risk factors include, but are not limited to, technological difficulties, the results of future research, lack of product demand and market acceptance for the Company’s CentraOne collaboration platform and its other current and future products, the effect of economic conditions, the impact of competitive products and pricing, the Company’s ability to manage and integrate the operation of the business of MindLever.com, Inc., acquired on April 30, 2001, and/or other factors outside the control of the Company. For a description of additional risks, and uncertainties, please refer to the Company’s filings with the SEC, including its Annual Report on Form 10-K for the year ended December 31, 2001 and its Form 10-Q for the three months ended June 30, 2002, which are available at www.sec.gov. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. The Company undertakes no obligation to release publicly the result of any revisions to these forward-looking statements that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Sharon Dratch

Centra

Tel: 781-994-1151

sdratch@centra.com