Compete :: Pinterest surpassed Tumblr in Unique Visitors for the first time. Ever. Pinterest has been a bit of a digital darling since being valued at $1.5 billion, but Tumblr has been a longstanding micro blogging paradigm for years and continues to have an intensely loyal community. They’re both being focused on for their usefulness to digital marketers, but if you look closer you’ll see that perhaps they’re not all that comparable.
A report by Ryan LaSala, blog.compete.com