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.