Amazon's Net US Ad Revenues, 2011-2015 [CHART]
Amazon has already developed its targeting technology, along with creating its own demand-side platform (DSP) to improve targeting of Amazon buyers on other web properties and devices like Kindles—something that may help position them as a more attractive site for both brand and direct response advertisers.
The bulk of those revenues are from the US, where eMarketer estimates Amazon took in $450 million in ad revenues last year. In 2013, Amazon will net $660 million in US ad revenues, rising to $1.1 billion by 2015. Read the rest at eMarketer.