Pay-per-call advertising pioneer Ingenio was set to announce Wednesday that ads from its network would appear on InfoSpace's search site.
Under the pay-per-call model, advertisers include their phone number next to links and pay only when a consumer calls them. Advertisers pay on average $9 to $10 per call, compared with 50 to 60 cents per click that advertisers pay on Google's AdWords network, said Marc Barach, Ingenio chief marketing officer.
Ingenio already offers pay-per-call ads on America Online and handles more than one billion searches per month, he said.
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