Centra Ranked #1 for Live eLearning by Leading Research Firm; Simba Information 2002 Leader List Recognizes Centra as Market Leader and De Facto Standard for Corporate eLearning.

Business/Technology Editors

Online Learning 2002

ANAHEIM, Calif.--(BUSINESS WIRE)--Sept. 23, 2002

Centra (NASDAQ: CTRA), the leading provider of software solutions for eLearning and business collaboration, today announced at the Online Learning Conference and Expo, that Simba Information, a leading market trends and forecasting firm, has ranked Centra as the top Virtual Classroom Vendor in their Leader List for 2002. Simba Information is widely recognized as the leading authority for market intelligence and forecasts in the information industry. Training Market 2002: Forecasts and Analysis covers all aspects of the burgeoning eLearning industry and includes market forecast data, extensive coverage of emerging trends and their associated business implications, and in-depth analysis of different sectors of the eLearning industry. Twenty-one companies that develop and deliver Web-based products and services for corporate training were profiled. The report gives Centra a 38.6% share of the market of eLearning sales by U.S.-based vendors.

"Many organizations have turned to us because they associate the Centra name with the highest standard of product quality, customer service, and eLearning expertise available today," said Leon Navickas, Chariman and CEO of Centra. "Over the next several years, the business landscape, dynamics, and very nature of eLearning will change dramatically. Our mission to provide a robust platform that services the real-time collaboration needs of the extended enterprise is helping these customers dramatically improve overall productivity, accelerate business processes and lower costs."

Scaleable Platform for Web Collaboration

Leveraging the core capabilities of the CentraOne(TM) platform, Centra offers a suite of integrated, real-time Web collaboration applications, content composition tools, and 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. These applications - including interactive Web meetings, virtual classrooms, and large-scale conferences - ensure universal access 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 Cadbury Schweppes, Citigroup, AT&T, Procter & Gamble, McKesson, Merck, Nationwide Insurance, and Sysco. Centra's products are bolstered by a vital ecosystem of strategic partners, including PwC Consulting, Deloitte Consulting, EDS, Microsoft, Siebel, Cisco, and Oracle. Headquartered in Boston's technology corridor, Centra has sales offices throughout North America, Europe, and Asia. For more information, visit www.centra.com.

Note to Editors: Centra will be demonstrating applications of the CentraOne 6.0 platform at Online Learning 2002 in Anaheim, California, September 23-25, 2002, in booth #100. For an on-site interview and product demonstration, please contact Sharon Dratch, Public Relations Manager, at 617-899-9348.

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.