Tumblr is a website that provides users with a microblogging platform and social networking capabilities. Users can post a variety of content that includes text and multimedia and follow the blogs of other users. The website offers a dashboard type of interface, providing easy access for blog posting and viewing other blogs being followed.
Tumblr was created by David Karp, who launched the site on April 27, 2007. Since then, it has grown to become one of the most popular blogging websites, registering 13.4 million unique visitors from the United States in July 2011. By July 2012, over 71 million posts were being made to the site every day and as of December 27, 2012, the site had over 39 billion posts in total. Several famous individuals use Tumblr, including Lady Gaga and John Mayer, and even President Obama used Tumblr to host his blog starting in October 2011. Tumblr's success earned David Karp recognition as the Best Young Tech Entrepreneur by BusinessWeek in 2009.
On May 20th, 2013, Yahoo! announced it was purchasing Tumblr for $1.1 billion. On June 13, 2017, Verizon acquires Tumblr when it purchases Yahoo! for $4.48 billion. Verizon later agrees to sell Tumblr to Automattic in August 2019.