The $30,000 Bequest and Other Stories
- Etext at Project Gutenberg.
- http://www.gutenberg.org/etext/142

The $30,000 Bequest
- MP3 files.
- http://www.gutenberg.org/etext/9003

The Man That Corrupted Hadleyburg and Other Stories
- Computer-generated audiobook, in MP3 format. One file per chapter.
- http://www.gutenberg.org/etext/9024

The Mysterious Stranger
- Computer-generated audio rendition. MP3 files.
- http://www.gutenberg.org/etext/9028

1601
- Etext at Project Gutenberg.
- http://www.gutenberg.org/etext/3190

The Celebrated Jumping Frog of Calaveras County, and Other Sketches
- Complete searchable text of the 1867 first edition of Mark Twain's first book.
- http://www.boondocksnet.com/twaintexts/frog/index.html

The Bridge-Builders
- Etext.
- http://www.pagebypagebooks.com/Mark_Twain/The_Bridge_Builders/The_Bridge_Builders_p1.html

The Man that Corrupted Hadleyburg
- Etext.
- http://www.pagebypagebooks.com/Mark_Twain/The_Man_that_Corrupted_Hadleyburg/

Merry Tales
- Complete searchable text of the 1892 collection of stories and essays, from Jim Zwick.
- http://www.boondocksnet.com/twaintexts/merrytales/index.html

Bartleby.com: Jim Smily and His Jumping Frog
- Text and criticism of the story.
- http://www.bartleby.com/310/5/