Marriott's Ad Network: Slow Rollout for Plan to Target Hotel Guests
Briefly

"However, it is paramount that we execute logically so that the content being delivered is valuable to our guests and enhances their interactions and experience with Marriott," Harper said.
An ad exec familiar with Marriott's effort said, on the condition of anonymity, that these types of media networks are tricky to create.
Read at Yahoo Finance
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