Approximately 2,000 Internet Users Speak: Free Instant Messaging -IM- Now; iCast and Tribal Voice to Send Evidence of Consumer Support for Open Communications to FCC

Business Wire, May 10, 2000

Business/Technology Editors

WOBURN, Mass. and DENVER--(BUSINESS WIRE)--May 10, 2000

Today, iCAST, an online entertainment company, and Tribal Voice(TM), a leading provider of co-branded instant messaging and interactive communication solutions, will send approximately 2,000 consumer petitions to the Federal Communication Commission (FCC) demanding that AOL make its AIM instant messaging service open and interoperable with products from other companies. These petitions call on AOL to open its instant messaging system and allow open communication for all users.

"These petitions speak to the heart of this issue: consumers want the freedom to choose instant messaging products and are demanding interoperability of services. Allowing AOL to merge with Time Warner without ensuring open communications will serve as a green light for the company to continue building walls on the Internet," said Margaret Heffernan, CEO, iCAST.

"Instant messaging will go as far as innovation can carry it," said Ross Bagully, CEO, Tribal Voice. "If AOL does not open its doors to interoperability, it will be a very short trip."

Both iCAST and Tribal Voice are active supporters of open access in instant messaging and strive for universal interoperability and consumer choice. iCAST's iCASTER and Tribal Voice's PowWow software are designed to be interoperable with AIM but AOL has continually taken steps to block such interoperability.

To find more information on the fight to ensure free and open Internet communications, please visit www.freeim.org. The site contains all the latest news and developments on this important issue.

About iCAST

iCAST (www.icast.com) is a multi-media rich, online entertainment company that champions self-publishing within a personalized, community-oriented environment. iCAST.com empowers individuals with the tools to create, customize and share their personal entertainment passions. It offers original, user-generated and syndicated audio and video content, entertainment news, features and interviews, live and archived events, and more. iCAST and the iCASTER, its downloadable media player, use Microsoft's Windows Media as its preferred streaming media format. iCAST is a majority-owned operating company of CMGI, Inc.

About Tribal Voice

Tribal Voice is a leading provider of co-branded instant messaging and interactive communications solutions based on its PowWow technology and a majority-owned operating company of CMGI, Inc. Founded in December 1994 and acquired by CMGI in December 1999, the company is headquartered in Denver, Colo. and maintains development organizations in Colorado Springs, Colo., and Austin, Texas. More than eight million worldwide users participate in over 18,000 communities via PowWow-based software. For more information on Tribal Voice and to download its PowWow client software, please visit http://www.tribal.com or call (303) 244-1790.

Companies interested in working with Tribal Voice to develop their own instant messaging and interactive communications solutions should e-mail sales@tribal.com or call 1-877-4POWWOW. If you are outside North America, please call 303-244-1790.

This release contains forward-looking statements based on current expectations or beliefs, as well as a number of assumptions about future events, and these statements are subject to important factors and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. The forward-looking statements in this release address a variety of subjects including, for example, the anticipated ability of the iCASTER and PowWow-based solutions to interoperate with instant messaging services of AOL and other companies. The following factors, among others, could cause actual results to differ materially from those described in these forward-looking statements: AOL and other companies may block the ability of the iCASTER and PowWow-based solutions to interoperate with other instant messaging services and iCAST's campaign for interoperable standards may not be successful. For a detailed discussion of these and other cautionary statements, please refer to CMGI's filings with the Securities and Exchange Commission, including CMGI's Annual Report on Form 10-K for the most recently ended fiscal year.

iCAST and iCASTER are trademarks of iCAST Corporation. Tribal Voice and PowWow are trademarks of Tribal Voice, Inc. All other products and services mentioned may be trademarks or services marks of their respective owners.