Earthlink Taps Autonomy Optimost Multivariable Testing Solution

Sees Increased Click-Through Rates

Cambridge, UK and SAN FRANCISCO — November 12, 2009 — Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in infrastructure software for the enterprise, today announced that EarthLink, Inc. (Nasdaq: ELNK), a leading Internet Service Provider with millions of customers, is using Autonomy Optimost to significantly improve the click-through rates (CTR) on its web sites.

For example, the search results page on my.earthlink.net has experienced a four-percent uplift in CTR, while the search results page on home.peoplepc.com has seen a greater than five-percent uplift in CTR.

The Autonomy Optimost solution allows web site owners, like EarthLink, and marketers to automatically identify the most compelling combination of web content and design by exposing different combinations of online content elements to different visitors, measuring visitors’ actions anonymously, and then optimizing the combinations based on those actions. The Autonomy Optimost solution does not collect any personally identifiable data from web site visitors. It is used by thousands of businesses around the world and has a proven track record in helping its clients achieve double-digit increases in conversion rates and online sales.

“Autonomy Optimost has changed the way we make decisions regarding how best to launch new creative and content for our websites,” said Wendy Kastner, senior manager, Creative Services at EarthLink, Inc. “We use Autonomy Optimost to make informed decisions based on quantitative analysis of the data, instead of relying solely on subjective opinions. This approach enables us to launch new campaigns more quickly and confidently, and helps us provide a compelling online experience for our customers.”

“With EarthLink’s diverse product lines, it is critical for the company to effectively deliver the right content and the best layout to its varied customer base,” said Andy Jenks, CEO of Autonomy Optimost. “Autonomy’s unique meaning-based approach recommends to web site owners the most compelling content and helps them launch new offers and campaigns in the most effective manner. We are pleased to help EarthLink to increase its click-through rates that ultimately converts into more revenue for the business.”

Please visit http://optimost.interwoven.com/ to learn more.

Source: Autonomy Interwoven