"Private History of the 'Jumping Frog' Story" by Twain, Mark
https://archive.org/details/jstor-25103312/page/n1
An article from The North American Review, Volume 158.
Publication date 1894-04-01
"Mark Twain in His Times"
https://web.archive.org/web/20070821065146/http://etext.lib.virginia.edu/railton/index2.html
An "interpretive archive" by Stephen Railton
The Mark Twain Boyhood Home & Museum
"The mission of the Mark Twain Home Foundation is to promote awareness and appreciation of the life and works of Mark Twain and to demonstrate the relevance of his stories and ideas to citizens of the world."
Images of the First Edition (1867)
https://staging.airflowsciences.com/rkn/Twain/3308-3349/3310/
Includes the cover, spine, title page, copyright page, and issue points. Images from the Collection of Robert Nelson.
JUMP
A 2005 documentary on the history of Calaveras County's Jumping Frog Jubilee inspired by Twain's story.
The Jumping Frog public domain audiobook
Six versions available for download at LibriVox
"88 Days in the Mother Lode: Mark Twain Finds His Voice"
http://www.thisnthatfilms.net/mark-twain.html
Documentary film about Twain's first encounter with the story in Angel's Camp
"The Jumping Frog of Calaveras County: Opera in Two Scenes"
http://www.usopera.com/operas/jumpingfrog.html
An opera based on the story. Premiered at Indiana University in May 18, 1950.
"The Adventures of Mark Twain"
https://en.wikipedia.org/wiki/The_Adventures_of_Mark_Twain_(1985_film)
Information on a 1985 American stop motion claymation animated fantasy film directed by Will Vinton, including a rendering of "The Celebrated Jumping Frog of Calaveras County."
Twain Quotes
Mark Twain Quotations, Newspaper Collections, & Related Resources
"The Notorious Jumping Frog of Calaveras County" TV special
https://www.imdb.com/title/tt0320905/
A 1984 ABC Weekend Special adaptation of Twain's story
"The Notorious Jumping Frog of Calaveras County" TV movie
https://www.imdb.com/title/tt0752782/
A 1949 made-for-TV movie
Best Man Wins
https://www.imdb.com/title/tt0040157/
A 1948 film revision of the story.
"Jim Smiley has a frog that can jump further than anyone else's frog, and Jim becomes obsessed with entering the frog in all of the local jumping-frog contests, not realizing that his obsession is about to cost him his marriage."
Angels Camp: Home of the Jumping Frog
A website devoted to the town where the story is set.
"The frog that jump-started Mark Twain's career"
https://www.latimes.com/entertainment/great-reads/la-et-c1-mark-twain-california-20150514-story.html
Los Angeles Times article about the story
The Mark Twain Project
http://www.marktwainproject.org/
"Mark Twain Project Online applies innovative technology to more than four decades' worth of archival research by expert editors at the Mark Twain Project. It offers unfettered, intuitive access to reliable texts, accurate and exhaustive notes, and the most recently discovered letters and documents.
Its ultimate purpose is to produce a digital critical edition, fully annotated, of everything Mark Twain wrote. MTPO is produced by the Mark Twain Papers and Project of The Bancroft Library in collaboration with the University of California Press; the site is hosted by UC Berkeley's Library Systems Office."
Twain's Notebook
http://bancroft.berkeley.edu/Exhibits/mtwest/gold_frog.html
"In this little notebook, which dates from early 1865, the 29-year-old Samuel Clemens made the first note in pencil for the story that would launch his national fame"