There's some tension between publishers and the internet's biggest behemoths. Michael Zimbalist, chief strategy and innovation officer at the Philadelphia Media Network—which operates Philly.com, The Philadelphia Inquirer and Philadelphia Daily News—spoke with eMarketer’s Yory Wurmser about the challenges publishers face when working with the duopoly, and the problems Facebook and Google have to solve. Zimbalist was interviewed as part of eMarketer’s June report, "Mobile Time Spent 2018: Will Smartphones Remain Ascendant?"