The Jackie Greene Band, California’s Hottest New Blues and Folk Group, to Perform at Macworld Conference & Expo 2005 in San Francisco

FRAMINGHAM, MA – January 3, 2005 – IDG World Expo, the leading producer of world-class tradeshows, conferences and events for technology markets, today announced "Macworld After Dark," a concert, sponsored by Playlist, featuring The Jackie Greene Band – led by singer, songwriter and musician Jackie Greene (http://www.jackie-greene.com). The concert will take place at Moscone Center on Wednesday, January 12 from 6:00 p.m. to 8:00 p.m. and is open, without charge, to all registered attendees of Macworld Conference & Expo(R) in San Francisco which takes place January 10-14, 2005 at the Moscone Center.

In describing the music of Jackie Greene, the band's record label DIG Music said, "Greene is strikingly unself-conscious in the way he envisions his time-out-of-mind place. His voice is big and casually seductive in the way that Bob Dylan and Tom Waits and Gregg Allman's voices are. His tone and inflections seem naturally born, from an old soul inhabiting a skinny body. When he needs to wail and growl, the words pour out like smooth whiskey; when he offers intimacies, they can almost seem too private. Like his heroes, Dylan and Waits, his source material embraces folk, blues and country; the end result is both cutting edge and timeless."

Macworld After Dark is sponsored by Playlist, a comprehensive magazine and Web site, covering the iPod and digital music technologies. The magazine spotlights digital music technology, the digital lifestyle, and music artists. The Web site, PlaylistMag.com ( http://playlistmag.com ), features free music downloads in every style, playlists from musicians and celebrities, and a community forum where users can share their tips, tricks and even their own playlists with other digital music fans.

Macworld After Dark is just one of many music-related programs at this year's Macworld Conference & Expo. It was announced on December 16, 2004 that several music stars will perform in the exhibit hall in front of the John Lennon Educational Tour Bus, a unique non-profit state-of-the-art mobile recording and multimedia studio. The concerts are without charge for all registered attendees of Macworld Conference & Expo and include:

— Spin Doctors (http://www.spindoctors.com), Tuesday, Jan. 11 at 3:00 p.m.

— Nitty (http://www.nittyonline.com), Wednesday, Jan. 12 at 3:00 p.m.

— Fatty Koo (http://columbus.kitoba.com/fattykoo.html), Wednesday, Jan. 12 at 4:30 p.m.

— Meleni (http://www.meleni.com), Thursday, Jan. 13 at 3:00 p.m.

— John Legend (http://www.johnlegend.com), Thursday, Jan. 13 at 4:30 p.m. and Friday, Jan. 14 at 2:30 p.m.

For more information or to register for the event, please visit www.macworldexpo.com .

About Macworld Conference & Expo

Owned and produced by Framingham Mass.-based IDG World Expo, Macworld Conference & Expo is the world's most comprehensive Macintosh OS event. Macworld Conference & Expo showcases products and services for professionals involved in media and creative content development for corporate and home applications, as well as prosumers using the Mac at home. Macworld Conference & Expo brings together the loyal base of Mac OS audiences in creative services, education, application development, entertainment, small office/home office and Internet-based environments. Macworld Conference & Expo offers professionals and prosumers alike the opportunity to discover the latest developments and hottest products these markets offer. For more information or to register for the event, please visit the Web site at www.macworldexpo.com , or call (800) 645-EXPO. For exhibiting opportunities, please contact Annie Rice at (508) 424-4839 or annie_rice@idg.com or Ron Moreau at (508) 424-4804 or ron_moreau@idg.com.

About IDG World Expo

IDG World Expo ( www.idgworldexpo.com ) produces technology-focused tradeshows, conferences and events for professionals seeking world-class education, peer-to-peer networking and one-stop comparison shopping. As the leading technology event management company, IDG World Expo leverages its experience and knowledge of technology-focused events and conferences, enabling technology companies to capture the attention and loyalty of influential buyers. IDG World Expo's portfolio of conferences and events includes Macworld Conference & Expo(R), LinuxWorld Conference & Expo(R), Bio-IT World Conference + Expo(TM), Portable Power Conference & Expo(TM), Wireless Sensing Solutions(TM), WinSEC(TM), Context(TM) and RoboNexus. IDG World Expo is a business unit of IDG, the world's leading technology media, research and event company.

About Mac Publishing LLC

Mac Publishing, LLC publishes the world's leading independent Macintosh publication and Web sites. Every month the award-winning Macworld magazine reaches over a million Macintosh professionals and enthusiasts while the Mac Publishing Web presence garners an average of 2 million unique visitors. The Mac Publishing sites include: Macworld.com, MacCentral.com, and PlaylistMag.com. Headquartered in San Francisco, Mac Publishing LLC is a subsidiary of International Data Group (IDG).

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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