Yahoo! and Research In Motion Announce Worldwide Relationship To Bring Yahoo! Services To Blackberry

Sunnyvale, CA and Waterloo, ONTARIO-- March 15, 2005 -- Yahoo! Inc. (Nasdaq:YHOO - News), a leading global Internet company, and Research In Motion (RIM) (Nasdaq:RIMM - News; TSX:RIM - News), a global wireless leader, today announced a new relationship to provide Yahoo!® Messenger service to BlackBerry® users around the world. This new relationship combines two respected leaders and brands to deliver an enhanced mobile communications solution.
Through this relationship, the companies plan to pre-install full-color, graphical Yahoo! Messenger clients on BlackBerry devices in the coming months. Yahoo! Messenger is one of the leading instant messaging services in the world and BlackBerry users will be able to access and connect with everyone on their friends list while they are on the go. This new relationship builds on Yahoo!’s strategy of extending its core services beyond the desktop and RIM’s strategy to provide a robust and expandable wireless platform in order to give customers a truly integrated communications experience. The companies also intend to provide a further enhanced Yahoo! Mail offering in the future.

The Yahoo! Messenger service on the BlackBerry platform will allow consumers to see which friends are online, send and receive instant messages, have multiple conversations at once, participate in online conferences and even send and view emoticons. Yahoo! Messenger will leverage the BlackBerry “push” technology to deliver a premier instant messaging experience for mobile users.

“We are excited to extend the Yahoo! experience to millions of BlackBerry users around the world,” said Doug Garland, senior vice president, Yahoo! Mobile. “Yahoo! has become an essential part of the lives of millions of its users and by bringing the services they love to these great mobile devices we are making it easier for people to communicate however they want, anywhere, anytime.”

“BlackBerry provides optimized messaging capabilities with its popular keyboards, largescreens, intuitive navigation and push-based connectivity,” said Mark Guibert, Vice President, Corporate Marketing at Research In Motion. “Through our relationship with Yahoo!, BlackBerry users will enjoy another powerful communications option to keep them connected while away from their desk.”

Customers can also currently access Yahoo! Mobile Internet, including Yahoo! Search, Yahoo! News and Yahoo! Sports on BlackBerry devices.* Through Yahoo! Mobile, Yahoo! focuses on extending key Yahoo! services beyond the desktop, providing an integrated PC-to-Mobile experience and helping consumers make the most of the mobile environment. As the number of mobile consumers continues to grow, Yahoo! has rolled out mobile extensions of key services across multiple carriers. RIM and Yahoo! plan to work with carriers to make the services available to customers*.
* - Check with carrier for availability

About Research In Motion
Research In Motion is a leading designer, manufacturer and marketer of innovative wireless solutions for the worldwide mobile communications market. Through the development of integrated hardware, software and services that support multiple wireless network standards, RIM provides platforms and solutions for seamless access to time-sensitive information including e-mail, phone, SMS messaging, Internet and intranet-based applications. RIM technology also enables a broad array of third party developers and manufacturers to enhance their products and services with wireless connectivity. RIM’s portfolio of award-winning products, services and embedded technologies are used by thousands of organizations around the world and include the BlackBerry® wireless platform, the RIM Wireless Handheld(TM) product line, software development tools and software/hardware licensing agreements. Founded in 1984 and based in Waterloo, Ontario, RIM operates offices in North America, Europe and Asia Pacific. RIM is listed on the Nasdaq Stock Market (Nasdaq:RIMM - News) and the Toronto Stock Exchange (TSX:RIM - News). For more information, visit www.rim.com or www.blackberry.com.


The BlackBerry and RIM families of related marks, images and symbols are the exclusive properties and trademarks of Research In Motion Limited. RIM, Research In Motion and BlackBerry are registered with the U.S. Patent and Trademark Office and may be pending or registered in other countries. All other brands, product names, company names, trademarks and service marks are the properties of their respective owners.

About Yahoo!
Yahoo! Inc. is a leading provider of comprehensive online products and services to consumers and businesses worldwide. Yahoo! is the No. 1 Internet brand globally and the most trafficked Internet destination worldwide. Headquartered in Sunnyvale, Calif., Yahoo!’s global network includes 25 world properties and is available in 13 languages.

Research In Motion’s Cautionary Statement Regarding Forward Looking Information Forward-looking statements in this news release are made pursuant to the “safe harbor” provisions of the United States Private Securities Litigation Reform Act of 1995. When used herein, words such as “intend” and similar expressions are intended to identify forward-looking statements. Forward-looking statements are based on assumptions made by and information available to Research In Motion Limited. Investors are cautioned that such forward-looking statements involve risks and uncertainties. Important factors that could cause actual results to differ materially from those expressed or implied by such forward looking statements include, without limitation, possible product defects and product liability, risks related to international sales and potential foreign currency exchange fluctuations, the initiation or outcome of litigation, acts or potential acts of terrorism, international conflicts, significant fluctuations of quarterly operating results, changes in Canadian and foreign laws and regulations, continued acceptance of RIM’s products, increased levels of competition, technological changes and the successful development of new products, dependence on third-party networks to provide services, dependence on intellectual property rights and other risks and factors detailed from time to time in RIM’s periodic reports filed with the United States Securities and Exchange Commission, and other regulatory authorities. RIM has no intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Yahoo! Cautionary Statement Regarding Forward Looking Information
This press release contains forward-looking statements concerning Yahoo!’s strategic and operational plans. Actual events or results may differ materially from those described in this press release due to a number of risks and uncertainties. The potential risks and uncertainties include, among others, acceptance by mobile users of versions of Yahoo!’s services developed for mobile devices and general economic conditions. All information set forth in this press release is as of March 14, 2005 and Yahoo! does not undertake any duty to update this information. More information about potential factors that could impact Yahoo!’s business and financial results is included in Yahoo!’s Annual Report on Form 10-K for the fiscal year ended December 31, 2004, including, without limitation, under the captions “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” which are on file with the U.S. Securities and Exchange Commission (the “SEC”) and available at the SEC’s website at www.sec.gov

Contact Information

Nicole Leverich

Press Contact

Yahoo! Inc.

Contact via E-mail