If you didn't believe Google and Yahoo management when they cited mobile search and advertising as one of the fertile, green fields for making money from mobile Web use, you might want to rethink that position.

JumpTap, which has built a unique, two-headed business model by offering white-label mobile search and a mobile advertising network, has just banked more than $26 million in funding.

The investment is the company's biggest round to date, bringing JumpTap's total funding to $72 million. The D round was led by AllianceBernstein L.P. and included General Catalyst Partners, Summerhill Venture Partners, Redpoint Ventures, Valhalla Partners and WPP.

JumpTap Chief Marketing Officer Paran Johar told me today the cash infusion will not only bolster the company's mobile search and advertising offerings but help the company grow its global ad sales and operations divisions to meet increased demand from advertisers. That's a sign that the market for mobile ads is hot.

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