IDG’s PC World Continues to Lead All Computer and Business Magazines in Readership Award-winning publication outdistances nearest competitor by over 600,000 in total average issue audience, according to IntelliQuest CIMS 2005.

SAN FRANCISCO, CA – OCTOBER 10, 2005 – Information from the just-released IntelliQuest CIMS 2005 Studies reveals that PC World once again delivers the highest reach — by over 15% compared to its nearest competitor — based on the total unduplicated, combined universe of total purchase influencers. PC World also tops the competition among home purchase influencers, outperforming PC Magazine by over 650,000.

PC World vs. Computer and Business Magazines IntelliQuest CIMS 2005

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

PC WORLD 4,933,000 — $14.86 4,505,000 —

PC Magazine 4,287,000 15% $16.91 3,847,000 17%

Business Week 3,354,000 47% $41.31 2,917,000 54%

Forbes 3,142,000 57% $23.90 2,667,000 69%

Fortune 2,787,000 77% $31.75 2,477,000 82%

Wired 1,896,000 160% $27.81 1,659,000 172%

Computer Shopper 1,810,000 173% $12.14 1,647,000 174%

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

and Dual Studies

(2) Telmar Rate Card File 10/05, 4-color, one page, no bleed, based on

Total Average Issue Audience

"Success in selling any product is directly proportionate to the number of qualified buyers who know about it," declared Wayne Silverman, VP/publisher, PC World. "This important new data from IntelliQuest CIMS confirms that for products targeted toward business and/or home influencers, no competitive publication will reach more than PC World."

This data is particularly useful since an increasingly large number of technology products are being marketed to both homes and businesses. Further, PC World's attractive advertising offerings and pricing make it both an affordable and efficient way for marketers to maximize product sales and enhance their brand's image.

Added Jeff Edman, president and CEO of PC World, "Our ongoing investment in editorial, the PC World Test Center, and reader research continues to pay off. For the third consecutive year PC World leads all competitors in reach to the influencers who matter most."

IntelliQuest CIMS 2005 was fielded from July 2004 through May 2005, and represents a projected universe of 35.8 million business purchase influencers, 76.8 million home purchase influencers, and 26.2 million dual purchase influencers.

About PC World:

PC World Communications, Inc., a subsidiary of IDG, is the publisher of PC World, ( ), and home of the PC World Test Center. The winner of the 2004 Eddie Award for Editorial Excellence, PC World is the most widely-read computer or business magazine with a readership of over 5.5 million (MRI, Spring 2005). With an average of over 5.6 million unique visitors per month (HitBox, July – September 2005),, winner of the 2005 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 .