uBid.com to Offer One of the Hottest New Cars

CHICAGO – May 17, 2000 – The cool, sleek unique styling of the PT Cruiser has it at the top of many wish lists – and now it’s available online at uBid.com, a leading e-commerce auction site, with a starting bid of only $1.

The inferno red PT Cruiser with a 2.4 litre, 4 cylinder, 16 valve engine is fully loaded with extras, including: VCR/monitor, power moonroof, keyless entry, cruise control, power mirrors and am/fm radio, cassette and CD player.

"uBid is committed to further establishing itself as the industry leader in business-to-consumer online auctions and the PT Cruiser auction is just another example of uBid’s innovative approach to increasing our already flourishing consumer base," said Tim Takesue, vice president of uBid.com. "The PT Cruiser has been selling out of showrooms across the country and we’re excited to offer one of our members the opportunity to own this unique automobile, while making the site entertaining and exciting for our visitors."

To place a bid on the PT Cruiser, log onto www.ubid.com and click on the automotive category under the "Consumer Electronics" tab. Bidding runs until, Wednesday May 31, 7 pm PT.

The winning bidder will be contacted within 72 hours after auction close. For more information on the PT Cruiser, check out www.ubid.com.

uBid.com, a majority-owned company of CMGI, Inc., is a leading online auction and e-commerce site that offers consumers and small-to-mid-sized businesses the opportunity to "set the price" on a wide range of brand name merchandise through live-action bidding using sophisticated auction technology. The company’s Internet auctions feature a rotating selection of more than 6,700 items in each daily auction. Consumers can browse in more than 12 different product categories, including: computers, consumer electronics, home and leisure, sports and recreation, jewelry and gifts, apparel, appliances, art, travel and events, home improvement products, monitors and printers, and off-lease computer equipment.

With more than 1 million registered users, uBid is committed to providing all customers with the highest quality auction experience on the Internet and offers supplier warranties on most consumer products. uBid.com also meets Better Business Bureau Online standards, which gives customers the confidence and security to bid safely online. For more information, visit the company’s Web site at www.ubid.com.

With more than 70 companies, CMGI, Inc. (Nasdaq: CMGI) represents the

largest, most diverse network of Internet companies in the world, including both CMGI operating companies and synergistic investments made through its venture capital affiliate, CMGI @Ventures. CMGI leverages the technologies, content and market reach of its extended family of companies to foster rapid growth and industry leadership across its network and the larger Internet Economy. Compaq, Intel, Microsoft, Pacific Century CyberWorks and Sumitomo hold minority positions in CMGI.

CMGI's majority-owned operating companies include Engage (Nasdaq: ENGA), NaviSite (Nasdaq: NAVI), 1stUp.com, Activate, AdForce, AltaVista, CMGion, CMGI Solutions, Equilibrium, ExchangePath, iCAST, MyWay.com, NaviPath, SalesLink, Tribal Voice, uBid.com, and yesmail.com. CMGI @Ventures has ownership interests in 57 companies, including Lycos, Inc. (Nasdaq: LCOS), Critical Path (Nasdaq: CPTH), MotherNature.com (Nasdaq: MTHR), Ventro (Nasdaq: VNTR) and Vicinity (Nasdaq: VCNT).

CMGI's corporate headquarters is located at 100 Brickstone Square, Andover, MA 01810. CMGI @Ventures has offices there, as well as at 3000 Alpine Road, Menlo Park, CA 94028. For additional information, see http://www.cmgi.com and http://www.ventures.com.

This release contains forward-looking statements which address a variety of subjects, including the expected ability of uBid to offer and sell the PT Cruiser. The following important factors and uncertainties, among others, could cause actual results to differ materially from those described in these forward-looking statements: uBid’s success depends on the continued and increased acceptance of its website and the Internet as a medium; consumer preferences for the products offered by uBid may change rapidly; and increased competition and technological changes in the markets in which uBid.com competes. 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.

uBid and uBid.com are trademarks of uBid, Inc. All other products and services may be trademarks or service marks of their respective owners.

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