PALM SPRINGS, CA –  Since its inception, digital advertising services company Collective has focused on brand marketers, not publishers.    Joe Apprendi, CEO and co-founder says that a number of technology providers are covering both the “buy side” and the “sell side” of the advertising marketplace. He says that companies need to pick which side, but not operate in both.

We spoke with him last week at the IAB Annual Leadership Meeting.   He speaks about the growth of Collective in the United States and the U.K.

Disclaimer:  Collective sponsored our coverage of the conference.