MAIN NEWS HEADLINES

April 20-27, 2006 Edition

Wiley Forms

New Partnership

With Epocrates

Hoboken, NJ/4/18/06—Global publisher John Wiley & Sons, Inc., today announced a new agreement with Epocrates, Inc., provider of mobile and web-based clinical applications, to make Wiley’s recently-acquired InfoPOEMs medical content available to Epocrates users. Under the terms of the agreement, Epocrates will integrate selected POEMs – daily summaries of the latest evidence-based medical research – into its free DocAlert® medical news service. DocAlert messages are distributed to the mobile devices of more than 500,000 healthcare professionals and help clinicians stay abreast of current information regarding clinical trials, drug withdrawals and study data. With the addition of InfoPOEMs’ content, the DocAlert service will further provide clinicians with important content to support decision-making at the point of care. “InfoPOEMs is a premier provider of evidence-based medical content summaries and Epocrates occupies a leadership position in mobile medical information,” said Greg Giblin, Director, HealthCare Solutions Group, North America, John Wiley & Sons, Inc. “This agreement brings together in partnership two firms with highly complementary strengths and enables a quarter of U.S. physicians to sample InfoPOEMs’ content.” Wiley announced its acquisition of InfoPOEM, Inc., a leading provider of evidence-based medical content and web-based search tools, in October 2005. The flagship services of InfoPOEMs – Daily POEMs and InfoRetriever – form the basis of a medical information management system that improves patient care and increases clinical efficiency. POEM is an acronym for “Patient-Oriented Evidence that Matters.” POEMs are daily summaries of medical research filtered from over 100 leading peer-reviewed journals and graded for validity and relevance to patient outcomes. Approximately one in 40 eligible studies is converted into a POEM and each POEM is reviewed by at least 15 physicians and/or physician editors prior to publication. Clinicians at Epocrates will review all POEMs and select some for syndication via its DocAlert channel. The DocAlert service delivers relevant medical information each time clinicians sync their mobile devices to retrieve updated content from the Epocrates’ databases. Physicians receive targeted DocAlert messages in their area of practice, such as cardiology, emergency medicine, gastroenterology, infectious disease, and primary care. “Epocrates applications are developed by a team of practicing physicians and pharmacists using multiple clinical resources, including evidence-based guidelines and studies. By working with InfoPOEMs, we are providing an additional resource for evidence-based medicine through the Epocrates DocAlert channel with clinically relevant and valuable study summaries,” said Kirk Loevner, chairman and chief executive officer for Epocrates. For more information about InfoPOEMs, please visit www.infopoems.com , and for more information about Epocrates’ DocAlert news service, please visit www.epocrates.com . About John Wiley & Sons, Inc. Founded in 1807, John Wiley & Sons, Inc., provides must-have content and services to customers worldwide. Its core businesses include scientific, technical, and medical journals, encyclopedias, books, and online products and services; professional and consumer books and subscription services; and educational materials for undergraduate and graduate students and lifelong learners. Wiley has publishing, marketing, and distribution centers in the United States, Canada, Europe, Asia, and Australia. The Company is listed on the New York Stock Exchange under the symbols JWa and JWb. Wiley’s Internet site can be accessed at www.wiley.com. About Epocrates San Mateo, CA-based Epocrates is transforming the practice of medicine by providing innovative clinical solutions at the point of care and deploying leading-edge technologies that enable communication. The company has built a clinical network connecting nearly 500,000 healthcare professionals, including over one in four U.S. physicians and nearly one in two U.S. medical students, with other healthcare stakeholders. Epocrates’ products have shown a positive impact on patient safety, healthcare efficiency and patient satisfaction. Epocrates was recently ranked 257 in the 24th annual Inc.500 ranking of the fastest-growing private companies in the country. For more information about Epocrates, please visit www.epocrates.com .