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BtoB

Twitter teams with AmEx to expand self-serve ads

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San Francisco—Twitter, which in December launched a limited test of a self-serve ad platform, will expand the service through a partnership with American Express Co. AmEx is offering a $100 advertising credit to the first 10,000 merchant cardmembers who sign up for the service here. The program will debut late next month. As with current Twitter ad units, the self-serve platform allows users to set bids for Promoted Tweets on a cost-per-engagement basis, paying only when viewers retweet, mention or reply to the tweet.
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