Would you ever consider putting the text of these pieces of literature into the repo? There is always the chance that links break and all that.
What I think I'll do is create directories for each type of content (short story, poem, essay) and then another directory within those for each author. Finally, inside each author's folder will be individual .txt files, named after the title of the piece, which (without violating copyright) will hold the actual text. If we can't put the full text into the file, a single line with a link to the best online version will be used.