Spafax Network’s DOOH Ad Buying Business is Hampered by Tech, Regulatory Hurdles

(Repost from November 18, Ed.) Tracking and measuring audiences on foot is more difficult than tracking audiences online, said Patrick Bonomo, chief operating officer of WPP's Spafax Networks. In January, Spafax launched a marketplace for out-of-home inventory called SN: Xchange. Mr. […]