Encarta Encyclopedia: Mark Twain
- Article tells about the life of the man who created Tom Sawyer and Huck Finn. Includes pictures and related links.
- http://encarta.msn.com/encyclopedia_761555419/Twain_Mark.html

Mark Twain
- Includes the complete text of most of his works, including a biography, photographs, and related articles.
- http://www.mtwain.com/

New Perspectives on the West: Samuel Clemens
- Features a detailed biography and portrait of the writer. From PBS.
- http://www.pbs.org/weta/thewest/people/a_c/clemens.htm

Mark Twain in His Times
- An in-depth look at the writer, his works, and his impact on the literary world.
- http://etext.lib.virginia.edu/railton/index2.html

Tour Hannibal Missouri
- Vacation guide includes many historical Mark Twain landmarks and theaters.
- http://www.maintour.com/missouri/nmohann.htm