In her now-famous tweet, Yahoo CEO Marissa Mayer promised not to “screw up” Tumblr. While it remains to be seen whether the site’s users will soon be fleeing, Tumblr’s advertising is a different story
Simply put, there’s not much to screw up at this point.
Partially, that’s because the company’s ad units are so new. But Tumblr faces other obstacles as well including an ambivalence towards advertising, a lack of metrics and a platform that lets you do lots of marketing outreach for…






