Tumblr




 * Tumblr** is a website and microblogging platform that allows users to post text, images, videos, links, quotes and audio to their tumblelog, a short-form blog. Users can follow other users, or choose to make their tumblelog private.
 * Total posts:** 13,775,664,738
 * Total blogs:** 36,476,781
 * Posts today:** 49,348,427
 * Celebrities such as Barack Obama, Skrillex, Lady Gaga, Hayley Williams, Nikki Sixx, Tommy Lee, John Mayer, Joseph Gordon-Levitt, Tim Lambesis, Sean Lennon, Mike Shinoda, John Legend, Britney Spears, Katy Perry, Gabe Saporta, Hilary Duff, Shay Mitchell and Rebecca Black among others, use Tumblr.