10 Big-Spending Advertisers That Prove Tumblr Could Make $100M in 2015

A marketing guide with BMW, Gatorade, Aeropostale

On Tuesday, Yahoo chief Marissa Mayer told investors that Tumblr would likely make more than $100 million in 2015. In our series this week, we learned that the social platform's millennial-leaning user base has grown 33 percent since Mayer and her team purchased it for $1.1 billion. And we examined how mobile advertising will be key if the company is to hit predictions like the one she set yesterday.

@Chris_Heine Christopher Heine is a New York-based editor and writer.