FOR IMMEDIATE RELEASE

EXHIBIT FAIR SPECIALITY SHOWCASE AT APPLE’S WWDC 2002
– Exhibit space is available on a first come, first served basis!

WESTLAKE VILLAGE, CA — February 28, 2002 — Xplain Custom Services today
announced the official “WWDC Exhibit Fair” at Apple’s Worldwide Developer
Conference (May 6-10, 2002). In the exhibit area, developers will showcase
their newest products which support Mac OS X and other Apple technologies.

“WWDC Exhibit Fair is the focal point for seeing the latest technical wares
on the Mac,” said Neil Ticktin, CEO of Xplain Corporation and Publisher of
MacTech Magazine. “With a mission focused on serving the
developer/technical communities, the WWDC Exhibit Fair will have vendors of
all types and sizes showing off the best the Mac has to offer. If you’re
just beginning as a programmer, developing web content, managing networks,
or have been a part of the developer community for years, you’ll have the
opportunity to meet the experts face-to-face, explore the cutting edge of
technology and will learn about new products for the Mac worldwide.”
Ticktin continues.

Xplain Custom Services manages MacTech Central(sm) throughout the year at
Macworld Expo and other high-tech venues. The last two years have been such
a huge success: the WWDC Exhibit Fair literally filled the exhibit show
floor — and companies had to be turned away. Organizers are anticipating
another full house in 2002.

The WWDC Exhibit Fair is where companies can cost-effectively exhibit and
reach the developer community face-to-face. Exhibit space reservations are
now being accepted for the Exhibit Fair at Apple’s WWDC 2001 in San Jose,
California. For reservations, call direct at 805-435-1004 or
(mailto:reservations@www.mactech.com).

In addition, DevDepot is returning to WWDC this year. The always popular
DevDepot will be set up to sell a variety of developer tools and related
products throughout the conference. If you’re in need of a developer or
technical product, or the latest and hottest accessories — DevDepot will
provide you with an excellent selection, world renowned customer service,
and people who care. For more information on DevDepot visit the web site at
(http://www.devdepot.com/). If you want to find out how to get your product
to market through DevDepot, contact Nick DeMello at 805-494-9797 or send
(mailto:vendor_relations@devdepot.com).

For more information on registering for Apple’s Worldwide Developers
Conference, see (http://www.apple.com/developer/wwdc2002/) — register
today!

About Xplain Corporation

Xplain Corporation has three divisions — publishing, mail order and custom
services. The publishing division includes MacTech(r) Magazine
(https://www.mactech.com/), and THINK Reference(tm). The mail order division
operates DevDepot(r) (http://www.devdepot.com/), DepotHQ(sm), and
RadGad(sm). Custom services provides custom publishing and trade show
services including such projects as WWDC Exhibit Fair and MacTech Central.
Founded in 1984, the company has its offices in Westlake Village,
California. See (http://www.xplain.com) for more information.

Press Contact:
Susan M. Worley
Xplain Custom Services
reservations@www.mactech.com
805-494-9797 Main
805-435-1004 Direct
805-494-9798 Fax

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MacTech and DevDepot are registered trademarks of Xplain Corporation.
MacTech Central is a service mark of Xplain Corporation. Additional company
and product names may be trademarks or registered trademarks of the
individual companies and are respectfully acknowledged. Not responsible for
typographical or other errors.