tumblelog
A tumblelog is a blog that supports short-form mixed media content. Tumblelog posts are brief comments that may contain audio, quotes, links, images or video.
Because the word tumblelog is so closely associated with the free social networking site Tumblr, the term has generally been replaced in the media by its synonyn, microblog.
Facebook, Twitter are examples of other free social network tumblelogging platforms for registered users. Tumblelog posts on Twitter are called tweets and on Facebook they are called status updates. (On Tumblr, they are just called posts.)