American Cryptogram Association: Crypto Drop Box Sample journal issue, links to member homepages, subject-related graphics, subscription information, and resources. http://www.und.nodak.edu/org/crypto/crypto/

Professor Payne's World of Cryptograms Interactive browser-based solver. Also contains program to generate cryptograms from a user-submitted quotation. http://www.freelearning.com/crypto/

Crypto Challenge Free Windows-based software for solving. Uses quotations, humorous sayings, and scriptures. Extras available for a nominal charge. Includes screen shots. Keeps track of which letters are in play. Counts the frequency of each letter. Word lookup table. http://www.cryptochallenge.com/

CryptaGram Offers download of limited version solver software. Extended version available for purchase. Has 14 quote topics, three levels of difficulty, and helpers. [Windows 95/98] http://www.isn.net/~bpj/

Cryptodaily Free weekly email service. Daily email service for a fee. http://www.cryptodaily.com/

OneAcross - Cryptograms Solving tool through web browser. Allows entry of a phrase, or selection from "easy, medium, or hard" quotations taken from the Linux fortune collection. Also features the ability to send cryptogram-encoded messages via email. http://www.oneacross.com/cryptograms/

Cryptogrammaton Ancient Greek mythological themes. Solutions listed separately, along with stories about the mythical characters in the puzzle. http://www.angelfire.com/yt/lagedor/cryptomenu.html

Cryptogram Solver Source Code Source code archive with several programs to automatically solve puzzles. Also includes "crypo-quote" of the day. http://www.gtoal.com/wordgames/cryptograms.html

Cryptograms Solving tool through web browser. Allows manual entry, or choice from among over a hundred built-in. http://members.singlepoint.net/sbryce/cryptograms/

Puzz.com: Cryptograms Ten problems with solutions taken from famous sayings, adages, and proverbs. By William F. Bultas. http://www.puzz.com/cryptograms.html

CRpuzzles Collection with browser-based solver tool. Includes hints. After deciphering the hidden quotation, solvers must derive the author's name from the cipher-quote letter pairs to complete their puzzle task. [Requires Java] http://www.crpuzzles.com/crypto/

Literary Cryptograms Collection based on literary passages, both general and with specific sets from William Cowper, Jane Austen's Persuasion, Plato's Phaedrus. Includes browser-based solution and solving instructions. http://www.mirror.org/crypt/

Edgar Allan Poe Crypto Challenge Historical background, contest details, and solution for the 157 year-old cryptograph which may have been written by Edgar Allan Poe. http://www.bokler.com/eapoe.html

Cryptogram Corner Daily puzzles and past archive. Has links to other subject related sites. http://www.geocities.com/cryptogramcorner/

All-Star Puzzles' Cryptograms Daily problems with browser based solver. The author's name is hidden in the cipher alphabet. [Requires Java] http://www.allstarpuzzles.com/cryptogram/index.html

Mac's Cryptograms Daily cryptograms, solutions, and hints, as well as monthly recaps. Links to Puzzle Sites. http://www.almostretired.net

Copycreate.com Cryptoquote/Cryptogram Daily cryptoquotes, and archive. Has browser-based helper form. http://copycreate.com

Crypto Daily Delivered via email. Also has advice on how to solve. http://www.cryptodaily.com/cryptograms.html

Cryptograms Louise A new problem every week. http://www.cryptogramsbylouise.com/cgrams.html

Cryptographs Puzzles featuring a portrait of a famous person and an encrypted quotation of its source or subject. http://www.cryptograph.com/