Nielsen Expands Reach of Web Measurement

Nielsen’s Internet measurement panel is now eight times larger than it used to be–allowing the audience research firm to measure traffic on 10 times as many sites as its previous sample, according to company officials.

The Web researcher—which like Mediaweek is owned by The Nielsen Company—claims it now has the ability to garner audience data for 30,000 Web sites, up from the 3,000 or so it has recently been able track. Such a sizable increase in panel size should go a long way in answering critics, who have complained in recent years that panel-based metrics firms like Nielsen and comScore do just fine in offering data on the audiences of top 200-plus sites–but lack a large enough sample to provide insight into the Internet’s long tail.

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