During a recent press release, Amazon explained how advertising had become a “key contributor” to its business as this present offer appears to be “extremely valuable” to both customers and brands. Presenting its business result for the fourth quarter, Amazon showed how they were able to generate up to 60% profits on mostly its ad business but also includes co-branded credit card agreements to $1.7bn. In the previous quarter, the growth   rate in ‘other’ revenue was 58%. Amazon CFO Brian Olsavsky Speaking on a call with investors stated that the rise in its ad business is considered a critical line in for brands and agencies into the e-commerce marketing line. Amazon’s ad business is another form of digital advertising that stretches way beyond search and social He further went on to explain that their strategy is to ensure that customers experience additive in the ad process.  “We want our customers…