Press Release

March 13, 2000

Research In Motion And OneMain.com Sign Agreement To Deliver BlackBerry Wireless Email Solution To Subscribers

Waterloo, ON - Research In Motion Limited (NASDAQ: RIMM, TSE: RIM) today announced it has signed an agreement with OneMain.com (NASDAQ: ONEM), a leading national Internet service provider (ISP), to supply BlackBerry Internet Edition™ for OneMain.com subscribers. BlackBerry™ will be offered to both new and existing OneMain.com subscribers. Today's announcement marks the beginning of an important relationship between the two companies as OneMain.com expands it wireless portal strategy.

BlackBerry Internet Edition is designed to allow ISPs to offer an end-to-end wireless email solution with single mailbox integration. The BlackBerry solution includes a powerful RIM wireless handheld with integrated email/organizer software, PC docking cradle, PC synchronization software and affordable airtime. BlackBerry allows mobile users to access their email, calendar, address book and task list wherever they go.

"OneMain.com is very excited to be partnering with RIM to expand our service offerings and enhance our customer's online experience," said Stephen E. Smith, OneMain.com Chairman and Chief Executive Officer. "We view this agreement as an important first step in our wireless portal strategy and an excellent opportunity to expand our ongoing business to business initiatives. With RIM, our customers will be able to access email and other features through state-of-the-art wireless technology. Looking further into the future, we plan to extend our service offerings and provide customers with wireless links to OneMain.com's unique, online geographic communities featuring local content such as news, community events and entertainment."

"BlackBerry Internet Edition allows ISPs such as OneMain.com to deliver an integrated wireless email solution to their subscribers," said Jim Balsillie, Chairman and Co-CEO at Research In Motion. "We believe that BlackBerry will provide OneMain.com with an excellent vehicle for building strong customer relationships and further their ability to provide localized content anytime, anyplace."

Key Features of BlackBerry Internet Edition:

• Powerful RIM Wireless Handheld - with Intel386™ processor, 2 MB Intel Flash memory, embedded wireless modem, 2 watt transmitter, optimized keyboard, thumb-operated trackwheel, easy-to-read backlit screen and integrated email/organizer software; wearable size - 3.5" x 2.5" x 0.93"; operates on one AA alkaline battery.
• Single mailbox integration with user's Internet mailbox - keep existing email address; only one mailbox to manage; user-selectable message filters.
• Read, originate, forward and reply to email using handheld.
• Full-featured, connected organizer - includes calendar, address book, task list and alarm; synchronizes with PC using docking cradle and Puma Technology's award-winning Intellisync™ Software (included).
• Always On, Always Connected™ - "push model" of email delivery; no dialing in; no raising antenna or initiating connections; email finds the user; no effort required.
• Extensive network coverage and affordable pricing.
• End-to-end solution.

About OneMain.com

Based in Reston, Virginia, OneMain.com (NASDAQ: ONEM) is "your hometown Internet." With more than 700,000 subscribers, OneMain.com is one of the largest independent Internet service providers (ISP) in the country. OneMain.com provides Internet access, services and local content throughout the United States to individuals and businesses predominantly located in smaller metropolitan markets and rural communities. OneMain.com believes these customers have traditionally been under-served by national ISPs and that a great opportunity exists to meet the growing demand for on-line services in these markets. Web site: www.onemain.com.

About Research In Motion

Research In Motion Limited is a leading designer, manufacturer and marketer of innovative wireless solutions for the mobile communications market. Through development and integration of hardware, software and services, RIM provides solutions for seamless access to time-sensitive information including email, messaging, Internet and intranet-based applications. RIM technology also enables a broad array of third party developers and manufacturers in North America and around the world to enhance their products and services with wireless connectivity. RIM's portfolio of award-winning products includes the RIM Inter@ctive™Pager product line, the BlackBerry™ wireless email solution, wireless personal computer card adapters, embedded radio-modems and software development tools. Founded in 1984 and based in Waterloo, Ontario, RIM is listed on the Nasdaq Stock Market (Nasdaq: RIMM) and the Toronto Stock Exchange (TSE: RIM). Investors may contact investor_relations@rim.net. Customers may contact info@rim.net. Web site: www.rim.net.

Research In Motion, RIM, the RIM logo, Inter@ctive, Inter@ctive Pager, BlackBerry, the BlackBerry logo, BlackBerry Internet Edition, and 'Always On, Always Connected' are trademarks of Research In Motion Limited. Research In Motion and RIM are registered with the U.S. Patent and Trademark Office. All other brands, products and company names mentioned herein may be trademarks or registered trademarks of their respective holders. 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. Investors are cautioned that such forward-looking statements involve risks and uncertainties, including, without limitation, risks relating to possible product defects and product liability, risks related to international sales and potential foreign currency exchange fluctuations, risks related to the year 2000 issue, continued acceptance of Onemain.com's and RIM's products, increased levels of competition, technological changes, dependence on intellectual property rights and other risks detailed from time to time in OneMain.com's and RIM's periodic reports filed with the United States Securities and Exchange Commission and other regulatory authorities.