WebEx Market Share Nearly Double Closest Competitor in Corporate Training And e-Learning Market

SAN JOSE, Calif., November 15, 2004—According to the annual corporate training and e-learning industry report published by research firm Simba Information, WebEx Training Center, an on-demand application from WebEx Communications, has become the industry leader for live, remote training. The report indicates that in 2004 WebEx’s market share in the e-learning industry climbed to nearly twice that of any competitor. WebEx Communications (Nasdaq: WEBX) is the leading provider of on-demand web meeting applications.

The full report, “Corporate Training Market 2004: Forecast and Analysis,” is available for purchase from Simba Information at: http://www.simbanet.com/publications/report_ctm.htm

"As businesses look for ways to save on travel costs and quickly disseminate critical information like new product details and regulatory compliance requirements, they are increasingly choosing web-based collaboration and training systems, fueling rapid growth in the market category during 2004,” said Michael O’Brien, Simba analyst and author of the report. “With its rich feature set, communications network and hosted service model, WebEx Training Center clearly tops the list of live online learning platform providers."

The report cites WebEx Training Center’s Hands-On Lab, a feature that enables users to remotely connect to computers or applications, and Presentation Studio, a multimedia content creation and delivery product for on-demand applications, as two new, dynamic components that have helped propel WebEx to its current lead position.

“When we launched WebEx Training Center in 2002, we were determined to offer the most collaborative, effective and hands-on online training application to meet the specific needs associated with delivering high-quality training to organizations of all sizes,” said Sanjay Dalal, director of Training Center for WebEx. “Now, just two years later, our leading position in the e-learning market indicates that users are in fact finding significant value in our application and its ever-expanding suite of remote training functions.”

The Simba report utilized worldwide sales and revenue figures to generate an informed overview of the corporate training industry and a detailed analysis of the web collaboration market. Roughly a decade after the initial development of online training tools, Simba Information projects that the overall market for live e-learning applications and services will increase 30 percent in 2004 giving it a three-year compound average growth rate of 22.7 percent, and making it the fastest growing sector of the overall corporate training market by a substantial margin.

About WebEx Training Center
WebEx Training Center blends data, voice and video communications to create an engaging online environment that simulates face-to-face training. Trainers can interact with attendees, share streaming media modules, use live video and demonstrate applications, even passing control to attendees. After the session, WebEx Training Center's advanced recording and editing functionality allows trainers to create valuable digital libraries of training sessions. In addition, WebEx Training Center is an open service platform, allowing partners and solutions providers in the content management, training management and self-paced training markets, to integrate with the collaboration application. WebEx Training Center does not require hardware/software investments or IT resources, and requires only a browser for trainers and attendees.

WebEx is a member of the Training Top 100 Leadership Alliance. WebEx Training Center has been recognized for excellence by numerous leading industry organizations, including APX Award's Best Product in the Distance Learning and Collaboration categories by Training Magazine; 4 Star Rating by Training Media Review; and Top Training Product by HR Executive Magazine.

About Simba Information:
Simba Information, an R.R. Bowker company, is widely recognized as the leading authority for market intelligence in the media and publishing industry. Simba's extensive information network delivers top quality, independent perspective on the people, events and alliances shaping the media and information industry. Simba publishes newsletters and research reports that provide key decision-makers at more than 15,000 client companies around the globe with timely news, analysis, exclusive statistics and proprietary industry forecasts. For more information, please visit www.simbanet.com, call 1-888-BOWKER2 (1-888-269-5372), or e-mail marketing@bowker.com.

About WebEx Communications, Inc.
WebEx Communications, Inc. is the world's leading provider of on-demand web meeting applications. WebEx applications improve collaboration and increase productivity in sales, support, training, marketing, engineering and product design. WebEx delivers its suite of web meeting applications over the global WebEx MediaTone Network, a network specifically designed for secure web collaboration. WebEx Communications is based in San Jose, California and has regional headquarters in Europe, Asia and Australia. Please call toll free 877-509-3239 or visit http://www.webex.com for more information.

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This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements may be identified by use of the terms anticipates, believes, continue, could, estimates, expects, intends, may, plans, potential, predicts, should or will, or the negative of those terms or similar expressions. These forward-looking statements are subject to significant risks and uncertainties. Actual results may differ materially from those described in such statements as a result of these risks and uncertainties. In particular, these forward looking statements include, but are not limited to, the statement related to Simba Information's projections for overall market growth for live e-learning applications and services and the statement that WebEx applications improve collaboration and increase productivity in sales, support, training, marketing, engineering and product design. Factors which could contribute to risks and uncertainties include, but are not limited to the failure of the market to grow at the projected rate and the failure of customers to integrate WebEx applications effectively into their businesses and to reduce their other expenses. A fuller discussion of the risks and uncertainties that could affect WebEx Communications, Inc. are more fully set forth in WebEx Communications, Inc.'s filings with the Securities and Exchange Commission, including WebEx's Form 10-Q filed with the SEC on November 8, 2004. WebEx Communications, Inc. assumes no obligation to update forward-looking information contained in this press release. References to third party projections or estimates do not imply or constitute endorsement or adoption of such projections or estimates.

NOTE: MediaTone is a trademark of WebEx Communications, Inc.