The legislation that resulted from that debate is just now making its way through Congress, and drug ads remain a hot button issue.

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Adidas, for instance, with its agency partner iProspect, determined that including the real value of a click on a store locator button, which it had identified from store data, proved that mobile ads were paying off in in-store sales.

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Button takes story you are reading and gets rid of all the distractions (like ads.) Looks nice.

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But while glimpses of this handy option have become ubiquitous in automotive ads, a sliver of the American public refuses to embrace push-button starts, regarding them as actually complicating the entry and ignition process rather than simplifying it.

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For example, Homescape, which hosts classified ads for a consortium of newspaper companies, has a find-a-Realtor button that sends information to Reply.

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Kurt Abrahamson, CEO of the share-button company ShareThis and a former Google sales director, says he thinks neither Google search nor its core search ads are threatened for now.

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