As part of its efforts to ramp its mobile ad business (and thus better monetize its Kindle...

|By:, SA News Editor

As part of its efforts to ramp its mobile ad business (and thus better monetize its Kindle line), Amazon (AMZN) has "kicked the tires on a few mobile-ad companies," AdAge reports. One of those companies is said to be JumpTap, one of the largest independent mobile ad networks. It's added Amazon has hired ex-Microsoft mobile marketing chief Jamie Wells to head its ad sales efforts. Millennial Media (MM +3.2%) appears to be getting a lift from AdAge's report.