All of Crane's works are available online at U C Berkeley: http://wordseer.berkeley.edu/stephen_crane/view.php
The Little Regiment
A Girl of the Streets. (Searchable corrected text at the Crane Society
The Red Badge of Courage
The Third Violet. This innovative site at OpenLibrary
reproduces the page images of the edition and allows viewers to "turn the pages"
just as they would with a regular book.
Comments to campbelld at wsu dot edu.