Briefs

InfoSpace's Search & Directory business has agreed to use Vivisimo's Clustering Engine on its Web metasearch properties, Dogpile, WebCrawler and MetaCrawler. Bellevue, Wash.-based InfoSpace has spent nearly a year upgrading its search properties.

The five-year-old Vivisimo, based in Pittsburgh, Pa., offers technology that clusters search results on the fly into folders labeled by category. The folders appear to the right of the list of results. "It's like categorizing books on the shelves in a bookstore," said Raul Valdez-Perez, president and co-founder of Vivisimo.

Vivisimo provides its technology to enterprises, government agencies and search services, and also operates its own search site as a showcase for the technology. The company says that combining its technology with paid listings from Overture Systems creates "doubly targeted" ads. "The targeting is based not only on the original query, but on the folder the user clicked on," said director of marketing Saman Haqqi. "The novelty is how to integrate them intelligently as the user navigates through the folders."

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