ChangeWave.com CEO Interviews On RadioWallStreet.com.

Business Editors/Hi-Tech Writers

PHILADELPHIA--(BUSINESS WIRE)--July 20, 2000

Listen to RadioWallStreet.com's interview with ChangeWave.com CEO Tobin Smith, author of ChangeWave Investing, formerly #5 on the NY Times business best seller list.

Mr. Towbin will be discussing Orchid BioSciences, Inc. (Nasdaq: ORCH), Sirius Satellite Radio, Inc. (Nasdaq: SIRI), Tumbleweed Communications Corp. (Nasdaq: TMWD), Information Architects Corporation (Nasdaq: IARC), MRV Communications, Inc. (Nasdaq: MRVC), National Information Consortium, Inc. (Nasdaq: EGOV), Superconductor Technologies Inc. (Nasdaq: SCON), Tanisys Technology Inc. (OTCBB:TNIS), Tricord Systems, Inc. (Nasdaq (SC): TRCD), and IMPATH Inc. (Nasdaq: IMPH).

This event will be available for on-demand listening on Thursday, July 20, 2000 at 6:30 PM ET.

To access this RadioWallStreet.com broadcast, investors should go to http://www.radiowallstreet.com. It may be necessary for first time visitors to Radiowallstreet.com to go to the site to download and install any necessary audio software. There is no charge to access any event.

If you are viewing this release after the day of the event, go to http://www.radiowallstreet.com/NASApp/RWS/EventPage?ID=28940.

Questions for this RadioWallStreet.com event may be submitted in advance by e-mailing [e-mail]. Please reference date and time of the interview in the Subject of the e-mail.

About Investor Broadcast Network

Investor Broadcast Network is the leading broadcaster of real-time investment information and analysis on the Internet. With a complete portfolio of web-based broadcast communication services, the company gives investors access to the inner circle of corporate executives and industry thought leaders, while providing public companies with an efficient online investor relations strategy that meets their financial needs and reduces the high-risk of selective disclosure.

For more information on Investor Broadcast Network visit www.investorbroadcast.com.