IDG’s PC World Leads All Computer and Business Magazines in Average Issue Audience Award-winning publication outperforms competitors by over 115,000 in total readership, according to IntelliQuest CIMS 2004

SAN FRANCISCO, CA – October 13, 2004 – Information from the recently- released IntelliQuest CIMS 2004 Studies shows that PC World has the highest reach among its competitors, based on the total unduplicated, combined universe of total purchase influencers. In addition, PC World leads the competition among home purchase influencers, outdistancing the closest title by over 120,000.

PC World vs. Computer and Business Magazines

IntelliQuest CIMS 2004

Total Average Issue Audience (1) PC World Advantage CPM – Total (2) Home – Average Issue Audience PC World Advantage

PC World 4,978,000 — $14.72 4,575,000 —

PC Magazine 4,860,000 118,000 $17.55 4,453,000 122,000

Business Week 4,365,000 613,000 $23.67 3,808,000 767,000

Wired 2,060,000 2,918,000 $22.00 1,814,000 2,761,000

Computer Shopper 2,054,000 2,924,000 $10.70 1,902,000 2,673,000

Maximum PC 942,000 4,036,000 $77.06 881,000 3,694,000

Business 2.0 597,000 4,381,000 $84.59 563,000 4,012,000

(1) Total unduplicated, combined Average Issue Audience: Business, Home, and Dual Studies

(2) Telmar Rate Card File 7/04, 4-color, one page, no bleed, based on Total Average Issue Audience

"The IntelliQuest CIMS 2004 Study proves that advertising in PC World reaches the greatest number of purchase influencers," declared Bob Ostrow, publisher of PC World. "And in an era of circulation controversy and uncertainty, independent studies like IntelliQuest CIMS provide a litmus test of which magazines deliver the highest average issue audience."

Broad reach in the home market is significant, with sales of networking, home entertainment, and convergence products on the rise. PC World's monthly Next Gear section and the recently-launched Digital World demonstrate PC World's dedication to providing technology advice consumers can trust in the emerging realm of convergence consumer electronics and mobile communications.

"PC World's award-winning editorial attracts purchase influencers across the board," continued Ostrow. "We consistently deliver a quality audience to our advertisers in a cost-efficient manner, making PC World an extremely attractive media option."

IntelliQuest CIMS 2004 was fielded during the months of July 2003 through March 2004 and January 2004 through August 2004, and represents a projected universe of 9.0 million business purchase influencers, 55.8 million home purchase influencers, and 25.5 million dual purchase influencers.

About PC World

PC World Communications, Inc., a subsidiary of IDG, is the publisher of PC World, Digital World, PCWorld.com ( http://www.pcworld.com/), and home of the PC World Test Center. The winner of the 2003 Eddie Award for Editorial Excellence, PC World is the most widely-read technology or business publication with a readership of over 4.9 million (IntelliQuest CIMS 2004: total unduplicated, combined Business, Home, and Dual Studies). With over 4 million unique visitors per month (HitBox, September 2004), PCWorld.com, winner of the 2004 Neal Award for Best Web Site, is a leading online resource for technology product buyers and users.

About IDG

International Data Group (IDG) is the world's leading technology media, research, and event company. A privately-held company, IDG publishes more than 300 magazines and newspapers including Bio-IT World, CIO, CSO, Computerworld, GamePro, InfoWorld, Network World, and PC World. The company features the largest network of technology-specific Web sites with more than 400 around the world. IDG is also a leading producer of more than 170 computer-related events worldwide including LinuxWorld Conference & Expo(R), Macworld Conference & Expo(R), DEMO(R), and IDC Directions. IDC provides global market research and advice through offices in 50 countries. Company information is available at http://www.idg.com/.

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