Crypto Drop Box - American Cryptogram Association - Sample journal issue from American Cryptogram Association, links to member homepages, cryptogram-related graphics, and resources.

The Cryptogram Club - Free and paid membership. Free computerized cryptogram solver and a "My Own Puzzle" feature.

Professor Payne's World of Cryptograms - Interactive browser-based cryptogram solver. Also contains program to generate cryptograms from a user-submitted quotation.

Crypto Challenge - Free Windows-based software to solve cryptograms from quotations, humorous sayings, and scriptures. Extra cryptograms available for a nominal charge. Includes screen shots.

Logicville - A Website Collection of Puzzles, Brain Teasers and Mathematical Recreations.

Solving Simple Substitution Cryptograms using Genetic Programming - Discussion of algorithms that can be used to solve cryptograms.

Cryptograms Weekly - Weekly puzzles for printing and solving along with the solutions. Also offers a magazine.

CryptaGram - Offers download of limited version software that allows cryptograms to be solved. Extended version available for purchase. Windows 95/98.

Cryptodaily - Offers two services. The first is a free, weekly email containing cryptograms to solve. The second is a daily email service for a fee.

OneAcross.com - Cryptograms - Cryptogram solving tool through web browser. Allows entry of a cryptogram, 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.

Cryptogrammaton - A dozen brain-twisting Cryptograms on ancient Greek mythological themes. Solutions listed separately, along with stories about the mythical characters in the puzzle.

Cryptogram Solver Source Code - Source code archive with several programs to automatically solve cryptogram puzzles. Also includes "crypo-quote" of the day.

Cryptograms - Cryptogram solving tool through web browser. Allows entry of a cryptogram, or choice from among over a hundred which are built-in.

Mac's Cryptograms - Daily cryptograms, solutions, and hints, as well as monthly recaps. Links to Puzzle Sites.

Puzz.com - Cryptograms - Ten cryptograms and solutions taken from famous sayings, adages, and proverbs.

CRpuzzles.com - Cryptograms - Large collection of cryptograms with browser-based solver tool. Includes hints and additional puzzle to name the author of the quotation.

Literary Cryptograms - Collection of cryptograms 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.

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.

Between Waters - Daily cryptograms and solutions available with or without interactive browser-based solver.

Cryptograms - Collection of cryptograms and crypto-groups.

Cryptogram Corner - Large collection of cryptograms with browser-based solving tool.