Topics: Tumblr - Wikipedia
Tumblr is a microblogging and social networking website founded by David Karp in 2007, and owned by Oath Inc.      The service allows users to post multimedia and other content to a short-form blog. Users can follow other users' blogs. Bloggers can also make their blogs private.   For bloggers, many of the website's features are accessed from a "dashboard" interface.
As of June 1, 2017, Tumblr hosts over 349.3 million blogs.  As of January 2016, the website had 555 million monthly visitors. 
In early June 2012, Tumblr featured its first major brand advertising campaign in conjunction with Adidas. Adidas launched an official soccer Tumblr blog and bought placements on the user dashboard. This launch was only two months after Tumblr announced it would be moving towards paid advertising on its site.