SAN FRANCISCO, CA, April 16, 2007 -- Web 2.0 Expo Conference -- WebEx (Nasdaq: WEBX), the leading provider of on-demand applications for collaborative business, today launched the WebEx Connect Developer Network, a comprehensive program for developers building applications for the WebEx Connect Marketplace. With development tools, community resources and go-to- market programs, the WebEx Connect developer program offers everything a developer needs to create collaborative business mashups.

"WebEx Connect can help enable third-party integration and lead generation activities for small software developers," Erin TenWolde, senior analyst for IDC's Software as a Service program. "On-demand delivery models are challenging traditional software channels and SaaS platforms such as WebEx Connect could play a key role in the new distribution paradigm."

WebEx Connect is the first collaborative on-demand platform for composite application development and distribution. The free WebEx Connect client will allow users to select best-of-breed applications from the WebEx Connect Marketplace, other on-demand application marketplaces or traditional on- premises software, to create collaborative mashup applications customized for their particular business processes. WebEx Connect go-to-market programs can help developers market, generate leads and even sale their applications. Learn more about the WebEx Connect Network at http://community.webex.com/connect

Developers can access WebEx Connect documentation, APIs, a "sandbox" development platform and join the partner program to access a prototype WebEx Connect client. WebEx Connect partner marketing services can help developers generate go-to-market strategies and leads for the applications on the WebEx Connect marketplace. The WebEx Connect Developer Network gives companies and ISVs a unique distribution channel by leveraging the extensive marketing, lead generation and sales resources of WebEx.

"Just as RSS, newsreaders and Google transformed the content world, WebEx Connect with its distribution, integration and monetization platform will help to transform software," said Shankar Iyer, vice president, strategic initiatives, WebEx. "WebEx Connect creates a new paradigm for the software suite by allowing customers to integrate best-of-breed applications into a collaborative, business mashup tailored for their needs."

WebEx provides on-demand collaboration applications to individuals, small businesses and enterprise organizations. WebEx applications combine both synchronous and asynchronous collaboration capabilities and enable businesses to leverage the web as an efficient channel for interaction with customers, partners and co-workers. WebEx Connect, the first collaborative on-demand platform, enables developers and customers to integrate multiple applications to create powerful collaborative business "mashup" solutions from web-based, on-premises and desktop applications. WebEx Connect brings together people, process and data in a collaborative workspace designed for the way business people work today.

About WebEx

With 2.2 million registered users, WebEx is the global leader in on-demand applications for collaborative business on the web. These applications enhance high-touch business processes, such as sales and training, with efficient web- touch interactions. As an on-demand provider, WebEx is able to facilitate both internal and external collaboration. WebEx delivers its range of applications over the WebEx MediaTone Network, a global network specifically designed for the secure delivery of on-demand applications. WebEx applications support multipoint videoconferencing, web conferencing and application remote control. WebEx is based in Santa Clara, 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

NOTE: MediaTone is a trademark of WebEx Communications, Inc

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, statements regarding the features and availability of unreleased products or platform tools. Factors which could contribute to risks and uncertainties include the failure to deliver the offerings as described, on schedule, or at all. 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-K filed with the SEC on February 27, 2007. WebEx Communications, Inc. assumes no obligation to update forward-looking information contained in this press release.

Contact: Colin Smith, WebEx
    (408) 566-5694 colin.smith@webex.com