Article: Clustering of Search Results Increases Click-Through Rates; Users Click on More Paid Listings by Navigating Through Folders Instead of Ranked Lists.

PITTSBURGH, Aug. 19 /PRNewswire/ -- Web searchers click 30%-100% more on paid listings when presented with search results using real-time clustering technology. This conclusion is the result of 'before and after' trials at several web search sites that include paid listings. When users view clustered search results rather than simple ranked lists, the page views per search session increase by 100%-150%, which leads to breakthrough improvements in paid-listings click-through rates (CTR).

These measurements were done by Vivisimo, a provider of award-winning software for clustering search results, and two of its search engine customers.

Clustering ...

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