Tumblr is a platform for microblogging that allows its users to publish text, images, videos, links, quotes and audio way tumblelog . Users can “follow” ( follow ) to other registered users and see their entries together with yours, so Tumblr can be considered a social tool . The service emphasizes ease of use and customization. Tumblr was founded by David Karp in the year 2007 . In mid- 2011 , exceeded the amount of Tumblr blogs to its competitor WordPress .