I don't tumble (or is it tumbl), and I honestly only know of two people who use tumblr, so I will link y'all to them. The first one is from a cool friend of mine, she basically re-blogs interesting/cute/funny images she sees on tumblr (some of them are quite endearing). The second one is from a guy I know, most the posts on his tumblr are poems he writes himself; they are quite deep!