Data Broadcasting Delivers Wireless eSignal Market Data to Seven Million BT Cellnet Users; Company Continues Aggressive Internet Strategy.

Business Editors

HAYWARD, Calif.--(BUSINESS WIRE)--Feb. 8, 2000

In an agreement with Genie Internet, BT Cellnet's mobile Internet Service Provider, Data Broadcasting Corp. (Nasdaq:DBCC), America's leading provider of real-time financial market data to traders and individual investors, today announced that it will supply eSignal's market data, using WAP (Wireless Application Protocol) technology, to a potential seven million users of the BT Cellnet cellular phone service.

As a result of this agreement, eSignal will offer its market data services over Genie Internet's WAP-enabled cellular phones. WAP is the technology that enables cellular phones to access data carried over the Internet. Customers will have access to market quotes from all of the major exchanges, plus a wealth of financial information, news and other essential market data -- all at the touch of a button. Users can access the WAP-enabled site through their BT Cellnet phones at http://phone.esignal.com.

&uot;Our latest agreement with Genie Internet further supports our Internet strategy of becoming the global leader of financial and market information - providing quotes to our users anytime, anywhere,&uot; said Mark Imperiale, chief executive officer and president of Data Broadcasting. &uot;Given the accelerated growth BT Cellnet is experiencing with their mobile phone users, this is an important agreement and we look forward to extending eSignal's reach to additional BT Cellnet customers.&uot;

From October to December 1999, BT Cellnet reported an increase of one million new mobile phone customers. In 1999, the company grew by 2.9 million customers, bringing its total to 6.95 million customers. BT Cellnet is the United Kingdom's absolute market leader for post-pay customers with 3.93 million users. Launched in September 1997, its Genie Mobile Internet Service Provider (www.genie.co.uk) has achieved 500,000 users registered on its portal site. Genie was the first service worldwide to send information from the Internet direct to a mobile phone.

DBC's eSignal delivers streaming real-time financial data over the Internet using Active Push technology to continuously update data at the user's workstation. DBC acquires its financial information directly from the exchanges and delivers it to customers via high-speed Internet. Newly installed Compaq Alpha Servers, reputed to be the world's fastest support this reliable and speedy infrastructure. DBC installed these four, redundant and geographically separate high-speed server farms in order to ensure the industry-leading reliability that customers count on and handle the enormous increases in exchange data expected over the next years.

eSignal's popularity is supported by relationships with more than 60 online brokerage firms, including Dreyfus (NYSE:MEL), Ameritrade (Nasdaq:AMTD), Wall Street Access and Lind-Waldock, among others. In addition, DBC has formed partnerships with direct access brokerages including Preferred Capital Markets, CyBerCorp, All-Tech Direct and On-Site Trading who offer eSignal subscribers the ability to trade from within the product and seamlessly integrate eSignal's real-time information with advanced online trading platforms.

About Data Broadcasting Corp.

Data Broadcasting Corp. is the leading provider of real-time market data to the individual trader and investor. The company delivers real-time stock quotes, financial information and news to the PCs, laptops and hand-held devices of millions of users via the Internet, dedicated lines, wireless FM, caing provider of fixed income portfolio analytics used for valuation and risk management purposes. Data Broadcasting's Internet presence includes http://www.dbc.com, http://www.eSignal.com, http://cbs.marketwatch.com, http://www.insite.dbc.com, http://www.bondedge.com, http://sports.dbc.com and http://www.dbceuro.com.

About BT Cellnet and Genie Internet Services

A wholly owned subsidiary of BT plc, BT Cellnet is the United Kingdom's fastest growing mobile Internet company and a market leader in mobile Internet services. In 1999, BT Cellnet launched Genie Internet, the UK's first mobile Internet service provider, and in the summer of 2000, the company will introduce a new generation of high-speed mobile data services using General Packet Radio Services (GPRS). BT Cellnet currently offers the UK's only two free access mobile ISPs - mass-market Genie http://www.genie.co.uk and U.Genie http://www.u.genie.co.uk which is aimed at 16-24 year olds. It now has over 500,000 customers and was the first to offer commercial WAP services in the UK.