Amazon (NASDAQ:AMZN) is launching video ads on its smartphone shopping app to take a bite of the $129B digital advertising market.
Bloomberg sources say Amazon has beta tested the product-based ads for several months.
Google (GOOG +0.5%)(GOOGL +0.6%) is reportedly planning a similar product for Android that will launch later this year. Google and Facebook (FB+0.4%) dominate the digital ad market.
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