13 Percent of All Web Users Visited ZDNet in October.

ZDNet Has a 26-Percent Lead Over Closest Technology Content Network

SAN FRANCISCO, Nov. 30 /PRNewswire/ -- Thirteen is the magic number for Ziff-Davis' (NYSE: ZD) ZDNet Sites this month, as it announces its standings in Media Metrix' October World Wide Web Audience Ratings Report. According to the report, ZDNet Sites reached 13.4 percent of all Web users last month, and is ranked #13 among all Web properties, a list that includes leading portals such as Yahoo! and Excite. In addition, ZDNet significantly outdistanced other technology content networks(A), with a 26-percent lead over its closest competitor, CNET.

"Our performance in the Media Metrix ratings indicates to us that our content and services are resonating with the Web population," said Dan Rosensweig, president of ZDNet. "Our content is focused on helping people become more productive, both at work and at home. We're continually finding new ways to guide individual users to the parts of the site that match their specific interests and needs. What we're doing appears to be working."

ZDNet Expands Lead Over Competition

According to the Media Metrix October report, ZDNet Sites had a 26-percent lead over CNET sites, in terms of unique visitors per month. ZDNet Sites reached 8.4 million unique visitors versus CNET sites, which reached 6.7 million unique visitors.

The previous two quarters show that ZDNet's lead over CNET has increased sharply. In Q2 (April -- June), ZDNet Sites averaged 4 percent more unique monthly visitors than CNET sites. In Q3, it had 12 percent more than CNET. Overall, ZDNet's unique monthly visitor numbers increased by 19 percent between Q2 and Q3 1998.

"We're excited about ZDNet's outstanding October performance and its growth trend during the previous two quarters," said Rosensweig. "Web users have gravitated to our site, enabling us to gain a firm lead over the competition. Whether they come for our depth and breadth of high-quality content or for our tightly integrated navigation between services like product reviews and online buying opportunities, we believe we're delivering a Web experience that is attracting an increasingly large audience."

ZDNet Maintains News, Information and Entertainment Leadership

In October, the ZDNet.com domain achieved the #1 rank in Media Metrix' News, Information and Entertainment category in the consolidated At Home/At Work ranking. As #1 in this category, ZDNet.com is ahead of a broad range of popular news and entertainment sites such as Disney Online (#4), cnn.com (#6) and espn.com (#7). In Media Metrix' At Home report, ZDNet.com has maintained its #1 rank for 26 of the last 28 months.

About ZDNet

Based in San Francisco, Ziff-Davis' ZDNet develops and maintains the ZDNet website ( http://www.zdnet.com ), the Web's leading source for computing and Internet content. ZDNet combines innovative interactive technology with

editorial from Ziff-Davis' worldwide network of journalists to produce original, compelling content and create communities of common interests in computing.

Ziff-Davis (NYSE: ZD) is an integrated media and marketing company focused on Internet-related technology, with principal platforms in print publishing, trade shows and conferences, online content, market research and education. The Company provides global technology companies with marketing strategies for reaching key decision-makers

NOTE: (A) Technology content networks include ZDNet, IDG.net, CMPnet, and CNet. The CNet network includes the search-engine site search.com, which is not focused on technology content.

This release contains forward-looking statements that are subject to risks and uncertainties. Although Ziff-Davis Inc. believes that the expectations reflected in its forward-looking statements are reasonable, actual results could differ materially from those expectations. Important cautionary statements and risk factors that would affect actual results are discussed in materials filed by Ziff-Davis Inc. with the Securities and Exchange Commission, including under the caption "Risk Factors" in the Prospectus dated April 28, 1998 contained in the Registration Statement on Form S-1 (File No. 333-46493).