Westfield Corporation, through its Brand Ventures division, has said that it will roll out 450 digital displays based on the 75″ Espirit Digital models and Ayuda Media Systems Software in 17 locations in the US. Cities will include New York, Los Angeles, Chicago, San Francisco/San Jose and Washington DC. As well as displaying content, the network will provide analytic data including the number of passers by and the demographics of viewers in close proximity. Other information will include dwell time and emotional response, as well as offering integration with social media. This will allow advertising that can respond to the audience.