Webridge Joins the Centra Business Collaboration Network

For Immediate Release

Webridge Joins the Centra Business Collaboration Network
Live B2B Web Collaboration Delivered Through the CentraBCN
Enhances Customer and Partner Relationships Online

LEXINGTON, MA, May 1, 2000 - Centra (NASDAQ: CTRA), the leader in software infrastructure for live business interaction and collaboration on the Internet, today announced that Webridge, a leading provider of B2B enterprise commerce, portal and Partner Relationship Management (PRM) solutions, has joined the Centra Business Collaboration Network. The CentraBCN is the first real-time marketplace for the exchange of live, collaborative business events and services on the Web. The Webridge business collaboration channel is available at www.webridge.com and uses CentraNow, Centra's voice-enabled Web meeting service, to support real-time interaction with employees, customers and partners.

In addition to joining the CentraBCN, Webridge will incorporate CentraNow into Partner Express, Webridge's industry leading PRM solution. More specifically, CentraNow will become a value added service to their PRM training application. This will give Webridge customers simple and ready access to capabilities for online business collaboration through a direct link to www.webridge.com. With CentraNow, Webridge can deliver highly interactive, real-time sessions that integrate PowerPoint presentations, shared applications, live Web pages, and audio conversations over the Internet.

"CentraNow offers a unique and valuable online collaboration experience that is a value-added service for our PRM customers," said Jack Johnson, Director of PRM Solutions for Webridge. "In addition to offering customers the ability to create, manage and track partner training, evaluations, events and programs through Partner Express, CentraNow enhances our offering with easily accessible events and services aimed at improving partner performance."

The widespread adoption of Centra's products and services for live business collaboration has accelerated the growth of the CentraBCN. The innovative online exchange lets businesses reach new users, deliver services, streamline operations, leverage intellectual capital, build relationships, and create new revenue opportunities. Today there are over 30 CentraBCN partners including Microsoft bCentral, Ariba, SkillsVillage, Inc.com, and Corio.

"The robust combination of Webridge's eBusiness solutions with Centra's live collaboration capabilities will help propel Partner Relationship Management to the forefront of eCommerce applications. This partnership helps to position Webridge among the major solution providers of the new Internet economy," said Michael Tupanjanin, Vice President of Business Development for Centra.

About Centra
Centra (NASDAQ: CTRA) is the leading provider of software infrastructure and a B2B marketplace for live Internet collaboration. Centra's solutions include Centra 99, an enterprise Web application for high-velocity sales, marketing, services and eLearning; and the innovative CentraNow network service - a convenient Web destination for live, voice-enabled business meetings. The Centra Business Collaboration Network (CentraBCN), the industry's first real-time B2B marketplace, utilizes this software infrastructure to enable the exchange of live collaborative services on the Internet. Centra's customers include Fortune 1000 companies such as Armstrong, Domino's Pizza, Kraft, Nationwide, Compaq, Sony, and Viacom. Centra has business and software partnerships with PricewaterhouseCoopers, Deloitte Consulting, Microsoft, Oracle, Ariba, and Global Knowledge. Headquartered in Boston's technology corridor, Centra has sales offices throughout North America, Europe and Asia. Visit Centra at www.centra.com.

About Webridge, Inc.
Webridge is a leading supplier of eBusiness application software engineered for the Internet enterprise. Webridge offers cost-effective, ready-to-deploy business solutions for e-commerce, partner relationship management (PRM), and knowledge portals. Webridge Express solutions are deployed in Internet time using a customizable object-oriented transactional framework, enabling companies to realize immediate revenue growth through web-based commerce. Today, Webridge products are powering eBusiness initiatives for global leaders such as Honeywell, Xerox, Primedia and AGENCY.COM.

A pre-public company based in Portland, Oregon, Webridge is managed by executives who previously founded Sequent Computer Systems. Webridge investors include Meritech Capital Partners, Intel, Sevin Rosen, Olympic Venture Partners, Worldview Technology Partners, Kaufman Family LLC, and Manchester Bridge Principal LP. For additional information visit the web site at www.webridge.com, or call (503) 601-4400.

Contacts:
Ellen P. Slaby
Centra Software, Inc
781-994-1068
eslaby@centra.com

Gary Whitney
Webridge, Inc.
503-601-4525
garyw@webridge.com