No story is too short to tell. In fact, many stories do not need to be drawn out. Instead, they can be pared down to a bare minimum. That is what I do on Twitter: write science fiction and fantasy stories that fit in the space of a single tweet, 140 characters.
The MicroSFF twitter stories - science fiction or fantasy stories, told in a single tweet of up to 140 characters - have grown quite popular since they first appeared in the spring of 2013. This collection contains one hundred microfictions, selected from the first 140 posted, as well as ten 100-word stories, and one slightly longer short story.