WebEx Chooses OpSource as Certified Delivery Provider to Ensure WebEx Connect Partner Solutions Are Secure, Robust and Highly Available

SANTA CLARA, Calif., September 26, 2006—OpSource, the SaaS delivery experts, and WebEx (Nasdaq: WEBX), the leading provider of software-as-a-service (SaaS) applications for collaborative business on the web, today announced that they have developed a partnership to provide ISVs interested in selling their applications on WebEx Connect grid, but requiring delivery assistance, with OpSource Optimal On-Demand, a complete SaaS service delivery solution.

OpSource’s Optimal On-Demand service delivery platform allows SaaS ISVs to focus on developing software and leaves operational considerations including all required capital investment, infrastructure, security, application management and disaster recovery to OpSource. And OpSource’s success based pricing for SaaS delivery insures that software companies of all sizes pay only for the capacity they need, with that capacity growing automatically in step with their business requirements.

“WebEx is revolutionizing the world of on-line collaboration and we’re very excited to stand in the front ranks with them, “said Richard Dym, SVP, business development, OpSource. “OpSource has defined SaaS service delivery for all organizations providing software and services over the web. Now WebEx Connect is defining how individuals and companies will work together to utilize a next generation of collaborative tools and applications. Together, OpSource and WebEx will accelerate the adoption of SaaS and take collaborative development and communication to the next level.”

WebEx Connect is the first application platform specifically designed for on-demand collaboration and third party application integration. WebEx Connect will allow users to integrate data from multiple applications and create a collaborative workspace custom designed for their particular workflow and business process. By leveraging open Web 2.0 protocols and collaborative WebEx connector APIs, WebEx Connect will make it easy for developers to adapt on-demand, desktop and enterprise applications to the platform or create new composite applications.

“We are pleased to have OpSource, a recognized leader in providing SaaS service delivery to new and existing ISVs, as a partner in WebEx Connect.” said Subrah Iyar, chairman and CEO, WebEx. “The availability of OpSource Optimal On-Demand to our WebEx Connect partners will speed their time to market and insure their applications are available, performing and secure.”

About OpSource
OpSourcetm, the SaaS experts, is solely focused on providing the operational infrastructure and ongoing services that enable software companies to deliver and maintain the highest quality Software as a Service (SaaS) solutions. By choosing OpSource as a SaaS partner, the software company is free from infrastructure management and can focus on improving its applications and finding new customers. OpSource’s Optimal On-Demandsm infrastructure enables software companies to deploy SaaS quickly, effortlessly, and without risk. Software companies at any stage in the application lifecycle, delivering any type of application, can benefit from our comprehensive services and expertise. OpSource is the only company to offer Success-Based Pricingsm, our per unit pricing model which allows companies to begin with a minimum commitment, and expenses scale only as revenue increases. For more information about OpSource, visit http://web.archive.org/web/20061109071547/http://www.opsource.net/.

About WebEx Communications
WebEx Communications, Inc., is the global leader in software-as-a-service (SaaS) applications for collaborative business on the web. These software-as-a-service (SaaS) applications enhance high-touch business processes, such as sales and training, with efficient web-touch interactions. WebEx delivers its range of applications over the WebEx MediaTone Network, a global network specifically designed for on-demand applications. 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://web.archive.org/web/20061109071547/http://www.webex.com/ for more information.