Google Unveils Mobile Ads Service

Online search giant Google Inc. is expanding the volume of advertising that it delivers to mobile devices, hoping to make more money from the expanding audience of consumers surfing the Web when they’re away from home or the office. Google has been offering a version of its AdWords search marketing program for mobile placement since last year, but this week, it formally introduced AdSense, which serves up contextually relevant ads on content sites, in some markets.