Ariba LIVE Goes Global; Premier Spend Management Conference to Be Held in London, Paris, Las Vegas and Tokyo Throughout 2006.

SUNNYVALE, Calif. -- Ariba(R), Inc. (Nasdaq:ARBA), the leading spend management solutions provider, today announced the dates and venues for Ariba LIVE 2006, the premier conference for spend management professionals. The global event series will kick off in London on February 8 and continue with stops in Paris on April 5, Las Vegas on May 8 and Tokyo on June 15.

"When the first LIVE event was held nearly a decade ago, spend management was a little-understood concept that companies were interested in exploring," said Lou Unkeless, Chief Marketing Officer, Ariba. "Today, it is a best practice that organizations around the world are using to manage a more profitable cost structure in the face of global business trends like globalization, inflation, and regulatory compliance. As the creator and leader of the spend management space, Ariba is committed to providing companies with information and tools they can use to shape and drive spend management initiatives that enable them to gain advantage in the increasingly competitive global marketplace."

2006 marks the eighth year of Ariba LIVE. As in previous years, the 2006 events bring together thought leaders, customers, and visionaries in the field of spend management to share best practices and insights that help drive the discipline forward. Last year, an all-star roster of speakers from leading global corporations participated in LIVE, including: Tyco International, Merck & Co., Inc. Motorola, Microsoft, Visteon, ConocoPhillips, AXA Service AG, Dutch National Railways, and many others. And the 2006 series promises to push the envelope even further, with many blue-chip companies, industry analysts, and educational institutions already confirmed to participate.

In addition to keynote speeches on a range of topics designed to provoke thought on the future of spend management and the factors that drive success, 2006 LIVE events will feature focused breakout sessions aimed at providing practical, actionable information that c-level executives as well as sourcing and financial professionals can use to fuel their spend management initiatives and deliver results. Attendees will also have ample opportunity to network with peers in informal settings where they can discuss challenges and successes and share lessons learned.

For more information on Ariba LIVE 2006, or to register for the global events, please visit www.aribalive.com.

About Ariba, Inc.

Ariba, Inc. is the leading provider of Spend Management solutions to help companies realize rapid and sustainable bottom line results. Successful companies around the world in every industry use Ariba Spend Management software and services. Ariba can be contacted in the U.S. at 1.650.390.1000 or at www.ariba.com.

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Safe Harbor Statement under the Private Securities Litigation Reform Act 1995: Information and announcements in this release involve Ariba's expectations, beliefs, hopes, plans, intentions or strategies regarding the future and are forward-looking statements that involve risks and uncertainties. All forward-looking statements included in this release are based upon information available to Ariba as of the date of the release, and we assume no obligation to update any such forward-looking statements. These statements are not guarantees of future performance and actual results could differ materially from our current expectations. Factors that could cause or contribute to Ariba's operating and financial results to differ materially from its current expectations include, but are not limited to: delays in development or shipment of new versions of Ariba's products and services; lack of market acceptance of Ariba's existing or future products or services; inability to continue to develop competitive new products and services on a timely basis; introduction of new products or services by major competitors; the ability to attract and retain qualified employees; difficulties in assimilating acquired companies; long and unpredictable sales cycles and the deferrals of anticipated orders; declining economic conditions; inability to control costs; changes in the company's pricing or compensation policies; significant fluctuations in our stock price; the outcome of and costs associated with pending or potential future regulatory or legal proceedings; the impact of our acquisitions, including the disruption or loss of customer, business partner, supplier or employee relationships; and the level of costs and expenses incurred by Ariba as a result of such transactions. Factors and risks associated with its business, including a number of the factors and risks described above, are discussed in Ariba's Form 10-K filed December 7, 2005.