Millennial dads may need a hand transitioning into the father role. Fatherly, an online publication, delivers advice-based content and is winning over advertisers in the process. Peter Gorenstein spoke with Michael Rothman, the company's CEO and co-founder, at the WPP Stream event in California.

Advertisers are realizing moms are no longer the "CEO of the household," says Rothman. The next generation of parents are now splitting in-home responsibilities, and Fatherly wants to deliver a fresh perspective for parenting journalism. Even though the audience is in the 30-54 age range, advertisers and Fatherly tailor content output to be more relevant to the kids.

When Fatherly first started, their content was heavily focused on Facebook. Now, Rothman wants to focus more on the "other side of the duopoly." He wants more of the content to appear via search results on Google and sees a big opportunity in other platforms including Instagram and Pinterest.