ADVISORY/Activate Premieres Adobe Digital Video Tour Webcast; Catch the Adobe DV Tour FREE Via Webcast.

Business Editors, Technology Writers

ADVISORY...for Thursday (July 26)

SEATTLE--(BUSINESS WIRE)--July 24, 2001

Worldwide Audience Gets the Latest on Delivering Compelling Digital

Video and Streaming Content

If you can't attend the Adobe Digital Video (DV) Tour, don't worry, Activate will bring Adobe DV to you.

Activate and Adobe kick-off their joint streaming initiative to provide live and on-demand webcasting services for the Digital Video Tour.

Join Adobe and co-sponsors HP, Intel, Sony and Activate for this dynamic and educational event to learn everything you need to know to start creating and delivering compelling DV and streaming content today. Webcast participants will learn how to capture, create and deliver compelling digital video for today's media FREE of charge at:

http://www03.activate.net/adobe/digitalseminar/registration/ default.asp.

-- Find out which DV and streaming media solution is right for you.

-- Discover how adding DV and streaming media can benefit you and your company.


-- Learn how to capture, create and edit DV for your chosen medium -- DVD or
the Web -- and how these are different.

-- Master DV and streaming industry terms.

SEMINAR DATE AND TIME

Thursday, July 26, 2001

1 p.m. (Eastern time) / 10 a.m. (Pacific time)

Securely sign up and register to view the Adobe DV Tour FREE of charge at:

http://www03.activate.net/adobe/digitalseminar/registration/ default.asp

CONTACT

Activate's press and analyst relations information is available at www.activate.com. Call Rachel Dressler at 503/552-3742 or email [e-mail] to request more information or an interview.

ABOUT ACTIVATE

Activate is the leading webcasting services company for enterprises, offering live and on-demand webcasting for business communications and consumer events. Customers using Activate's webcasting services include Compaq, Microsoft,

EMC(2), Adobe, Safeco and Nortel. In February 2001, Activate premiered the industry's largest digital content facility, called Activate Grand Central, to manage and stream thousands of simultaneous audio and video signals over the Internet. Activate was awarded the blue ribbon in Network World's Streaming Media Review and Computerworld named Activate one of the top emerging companies to watch in 2001. A majority-owned operating company of CMGI, Inc. (Nasdaq:CMGI), Activate is based in Seattle with additional offices in New York, Toronto, San Francisco, Los Angeles and Chicago. Information is available at www.activate.com or 877/577-9261 US or Canada 877/638-0168.

This press release includes forward-looking information. All statements other than statements of historical fact, including without limitation, those with respect to Activate's objectives, plans and strategies set forth herein are forward-looking statements. These forward-looking statements are subject to a number of risks and uncertainties, which could cause Activate's future results of operations to differ materially from those anticipated. 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 and its Quarterly Report on Form 10-Q for the most recently ended fiscal quarter.