NEW YORK--(BUSINESS WIRE)--Tapad, the leader in cross-device marketing technology, announced it has joined the Network Advertising Initiative (NAI), the leading self-regulatory association dedicated to responsible data collection and its use for digital advertising. Renowned for its rigorous vetting protocols, the NAI has played a critical role in elevating privacy and accountability standards for more than 10 years. Cross-device marketing is entering into the mainstream of digital advertising