STAMFORD, CT – June 13, 2000 – Nielsen//NetRatings, the fastest growing Internet audience measurement service in the industry, today reported April data for Australia, Ireland, New Zealand, Singapore and the United Kingdom, showing that Yahoo! and MSN are retaining their leadership position for international surfers. Nielsen//NetRatings is a service partnership between ACNielsen eRatings.com, NetRatings, Inc. (Nasdaq: NTRT) and Nielsen Media Research. ACNielsen eRatings.com is a venture between ACNielsen Corp. (NYSE: ART) and NetRatings, Inc.

"In April, we saw global domains retain the leading positions they gained in March by taking advantage of global branding efforts and developing strong local partnerships," said Allen Weiner, vice president of analytical services at NetRatings. "As additional evidence that international Internet usage is following patterns we saw in the U.S. one to two years ago, the number of unique sites visited is higher in all five non-U.S. countries, reflecting the fact that global audiences are still engaging in surfing activity, familiarizing themselves with the breadth and depth of the web, while in the U.S., websites have attracted more loyal bases and users have streamlined their sessions."

Global Internet domains MSN and Yahoo! continued to figure prominently in international surfing activity in April. MSN was the top web site by domain in the U.K., New Zealand, Ireland and Australia. For the second month, Yahoo! remained the most visited site in Singapore (see Table 1). Internet usage trends showed Australian users registering longer surfing sessions than users in the U.S., though American Web surfers still spent nearly two more hours online during April than their closest global counterparts (see Table 2).

"Clearly, the Web is satisfying global consumers’ needs for an interactive media," said Weiner. "The continued leadership of both MSN and Yahoo! validate their replicable models and stronger local partnerships and demonstrate that site tools and applications such as e-mail, chat, instant messaging, and message boards help promote functionality, utility, and repeated use."

AUSTRALIA, April 2000

IRELAND, April 2000

SINGAPORE, April 2000

NEW ZEALAND, April 2000

UNITED KINGDOM, April 2000

Weiner noted that another trend in international Web activity is the local market power displayed by a number of phone and Internet services providers. In Ireland, Singapore and New Zealand, local telecom companies and major Internet Service Providers are showing their ability to grab traffic on the Web. For example, Xtra, a service of Telecom New Zealand, takes advantage of its power in the marketplace to be the second largest domain in that country and a leading news and information resource. The same is true in Singapore, where Pacfusion, a regional ISP and Signet, a local telecom provider, are among the top sites in their market.

"Outside the U.S., the role of the government-run and emerging telecom providers are significant factors in the evolving Internet marketplace," said Weiner. "Telecoms have the opportunity in markets with limited competition to not only provide pure Internet service, but also to become a value-added informational resource. It’s the America Online model played out beyond U.S. shores."

International Internet Usage
U.S. Internet users logged the highest number of sessions in the month of April, though the U.S. lagged behind Australia, Singapore and New Zealand for time spent during each surfing session (see Table 2). Users in Ireland spent just a few seconds less per surfing session than users in the U.S., while users in the U.K. spent an average of just over 28 minutes online per session, nearly two minutes less time than users in the U.S.

International Categories
Search engines and portals were the most popular categories for Web surfers in all five non-U.S. countries. However, shopping was the most popular category in the U.S. in April, attracting more than 44% of the active Internet population, in sharp contrast to shopping sites in the U.K., where nearly 34% of the active population visited shopping sites; in Ireland, where just under 17% visited shopping sites; in Australia, where shopping sites only attracted 15% of the active population, and in New Zealand, where shopping attracted just under 14% of the active population.

"The popularity of shopping sites in the U.S. reflects the fact that Web sites have succeeded in reaching U.S. shoppers when they are prepared to buy," Weiner said. "The recent commerce shakeout in the U.S. has forced e-tailers to focus more on customer value, which benefits both buyers and sellers. It’s likely that in short order, commerce companies globally will pick up on this trend for long-term survival."

About Nielsen//NetRatings
Through strategic partnerships between NetRatings, Nielsen Media Research and ACNielsen, the Nielsen//NetRatings audience measurement service collects real-time data from more than 110,000 Internet users around the world. The U.S. panel sample currently consists of 57,000 at-home users and 8,000 at-work users. International panels are under development with over 45,000 at-home users currently being measured. These panels collectively represent the largest media research sample of Internet users in the industry.

Nielsen//NetRatings uses unique technology capable of measuring both Internet use and advertising to provide the most timely, accurate and comprehensive Internet usage data and advertising information in the global marketplace. Nielsen//NetRatings tracks the entire spectrum of Internet user behavior, leveraging proprietary data-collection technology from NetRatings, Nielsen Media Research's 50 years of expertise in research and audience measurement, and ACNielsen’s international leadership in offering market research information covering more than 100 countries.

About ACNielsen eRatings.com
ACNielsen eRatings.com is a venture between ACNielsen (NYSE: ART) and NetRatings Inc. (Nasdaq: NTRT). ACNielsen is the world's leading market research firm, offering measurement and analysis of marketplace dynamics, consumer attitudes and behavior, and new and traditional media in more than 100 countries, and NetRatings is the leading provider of Internet audience measurement technology and analysis. Through the Nielsen//NetRatings service, ACNielsen eRatings.com is creating the first global service for tracking audiences, advertising and user activity on the Internet in more than 30 countries worldwide.

About NetRatings, Inc.
NetRatings (Nasdaq: NTRT) provides Internet audience measurement and analysis services that enable its customers to make informed decisions regarding their Internet strategies. NetRatings delivers accurate and timely information collected from a representative sample of Internet users and augments it with detailed, flexible reporting and in-depth analyses.

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Forward Looking Statements: Certain statements contained herein are forward looking. These may be identified by the use of forward-looking words or phrases such as "anticipate," "believe," "expect," "could," "should," "plan," "estimated," "potential," "target," "aim" and "goal," among others. In connection with the "safe-harbor" provisions of the Private Securities Litigation Reform Act of 1995, ACNielsen and NetRatings are hereby identifying important factors that could cause actual results to differ materially from those contained in forward-looking statements made regarding the venture. Any such statement is qualified by reference to the following cautionary statement.

Risks and uncertainties that may affect the operations, performance, development and results of the venture's business include: (i) the likely incurrence of significant losses by the venture while its business is being developed and the difficulty of forecasting future revenues and costs;(ii) the risk that a competing company's Internet audience measurement service will become the accepted standard for Internet audience measurement; (iii) the ability to successfully develop, promote and maintain the Nielsen//NetRatings brand; (iv) the effects on demand for the venture's products and services if the use of the Internet does not continue to grow; (v) the effect that governmental regulation of the Internet could have on the growth of the Internet; (vi) the ability to successfully respond to rapid technological change, including the uncertainties surrounding the emergence of new Internet access devices; (vii) the risks associated with international development of the Internet ratings service, including effecting necessary changes to the existing software to accommodate language and other differences in the jurisdictions in which the venture will operate and the effect of laws and regulatory requirements in such jurisdictions; (viii) the risks involved in collecting personal information from panelists, including the effect of privacy laws in the jurisdictions in which the venture will operate; (ix) the impact of foreign exchange rate fluctuations since so much of the venture's earnings will be generated abroad; (x) the risk of technical difficulties or service interruptions and the lack of a backup facility in the event of a systems failure at NetRatings' computer operations center in San Jose, California; and (xi) the uncertainties of litigation, including the IRI lawsuit against ACNielsen; as well as other risks and uncertainties that may be detailed from time to time in the Securities and Exchange Commission filings of the venture partners.

Developments in any of the areas referred to above could cause the results of the venture to differ from projected results. ACNielsen and NetRatings caution that the foregoing list of important factors is not exclusive and they do not undertake to update any forward-looking statement that may be made from time to time regarding the venture.