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Search Engine Wars: Making Money Off Search

If Web users don't pay to search, how do search engines make money? In the third report in a five-part series about Internet search engines, NPR's Rick Karr traces the ways companies such as Google and Yahoo earn cash.

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Rick Karr contributes reports on the arts to NPR News. He is a correspondent for the weekly PBS public affairs show Bill Moyers Journal and teaches radio journalism at Columbia University.