Yahoo and Tumblr announced Monday morning that Yahoo has officially acquired Tumblr for $1.1 billion in cash.
In the release, the companies noted that “Per the agreement and our promise not to screw it up, Tumblr will be independently operated as a separate business. David Karp will remain CEO. The product, service and brand will continue to be defined and developed separately with the same Tumblr irreverence, wit, and commitment to empower creators.”
Yahoo CEO Marissa Mayer also announced the acquisition on her own Tumblr, while Tumblr CEO David Karp wrote about it on Tumblr’s staff blog.
Tumblr has over 300 million monthly unique visitors, according to the release. (comScore had pegged the site’s April traffic at 124 million uniques.) The companies say that half of Tumblr’s users use its mobile app, and reiterated one of the reasons that Yahoo was willing to shell out over a billion dollars for a company whose revenues were less than $15 million last year: “The combination of Tumblr+Yahoo is expected to grow Yahoo’s audience by 50 percent to more than a billion monthly visitors, and to grow traffic by approximately 20 percent.”
“Our team isn’t changing. Our roadmap isn’t changing. And our mission — to empower creators to make their best work and get it in front of the audience they deserve — certainly isn’t changing,” Tumblr CEO David Karp said in a statement. “But we’re elated to have the support of Yahoo and their team who share our dream to make the internet the ultimate creative canvas. Tumblr gets better faster with more resources to draw from.”
“Tumblr is redefining creative expression online,” Yahoo’s Mayer said. “On many levels, Tumblr and Yahoo couldn’t be more different, but, at the same time, they couldn’t be more complementary. Yahoo is the Internet’s original media network. Tumblr is the Internet’s fastest-growing media frenzy. Both companies are homes for brands — established and emerging. And, fundamentally, Tumblr and Yahoo! are both all about users, design, and finding surprise and inspiration amidst the everyday.”
Yahoo and Tumblr are holding a conference call at 9 AM ET and we will be on the call.
I’m delighted to announce that we’ve reached an agreement to acquire Tumblr!
We promise not to screw it up. Tumblr is incredibly special and has a great thing going. We will operate Tumblr independently. David Karp will remain CEO. The product roadmap, their team, their wit and irreverence will all remain the same as will their mission to empower creators to make their best work and get it in front of the audience they deserve. Yahoo! will help Tumblr get even better, faster.
Tumblr has built an amazing place to follow the world’s creators. From art to architecture, fashion to food, Tumblr hosts 105 million different blogs. With more than 300 million monthly unique visitors and 120,000 signups every day, Tumblr is one of thefastest-growing media networks in the world. Tumblr sees 900 posts per second (!) and 24 billion minutes spent onsite each month. On mobile, more than half of Tumblr’s users are using the mobile app, and those users do an average of 7 sessions per day. Tumblr’s tremendous popularity and engagement among creators, curators and audiences of all ages brings a significant new community of users to the Yahoo! network. The combination of Tumblr+Yahoo! could grow Yahoo!’s audience by 50% to more than a billion monthly visitors, and could grow traffic by approximately 20%.
In terms of working together, Tumblr can deploy Yahoo!’s personalization technology and search infrastructure to help its users discover creators, bloggers, and content they’ll love. In turn, Tumblr brings 50 billion blog posts (and 75 million more arriving each day) to Yahoo!’s media network and search experiences. The two companies will also work together to create advertising opportunities that are seamless and enhance user experience.
As I’ve said before, companies are all about people. Getting to know the Tumblr team has been really amazing. I’ve long held the view that in all things art and design, you can feel the spirit and demeanor of those who create them. That’s why it was no surprise to me that David Karp is one of the nicest, most empathetic people I’ve ever met. He’s also one of the most perceptive, capable entrepreneurs I’ve worked with. His respect for Tumblr’s community of creators is awesome, and I’m absolutely delighted to have him and his entire team join Yahoo!.
Both Tumblr and Yahoo! share a vision to make the Internet the ultimate creative canvas by focusing on users, design — and building experiences that delight and inspire the world every day.
— Marissa Mayer, CEO of Yahoo!
* The transaction is subject to customary closing conditions, and is expected to close in the second half of the year. More information about the news can be found in the press release we issued today.

