DOOH and Colgate collect smiles via digital signage. - 6 views
http://www.outputmagazine.com/digital-signage/applications/interactive/dooh-perfect-for-leveraging-social-media-says-vml-london
http://www.outputmagazine.com/digital-signage/applications/interactive/dooh-perfect-for-leveraging-social-media-says-vml-london