NPR News: How Digital Billboards Target Passersby (Hint: It's Cellphone Data)
How Digital Billboards Target Passersby (Hint: It's Cellphone Data)
More and more digital billboards are popping up around the U.S. Many are tracking us through our cell phones — similar to what happens online. Here's a close look at one in Times Square.
Read more on NPR
More and more digital billboards are popping up around the U.S. Many are tracking us through our cell phones — similar to what happens online. Here's a close look at one in Times Square.
Read more on NPR
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