Adventure Puzzles Serial adventures, continuing story and puzzles building towards a final puzzle and solution.
http://www.questexperiences.com/quest2/PortsToAdventure/AdventurePuzzles/default.asp - [ Report Dead Link ]
Crosskit.com Offers printable crossword and sudoku puzzles. Puzzles are offered daily and weekly with an archive. Also offers a crossword dictionary, daily horoscope, and discussion forums.
http://www.crosskit.com - [ Report Dead Link ]
Holiday Puzzles Collection of original puzzles developed over the years to celebrate the winter holidays.
http://www.radix.net/~erewhon/puzl/index.html - [ Report Dead Link ]
Logicville Educational puzzles, brain teasers, mathematical recreations and word games. A resource for anagrams, cryptograms, alphametics, word puzzles, logic problems, doublets, tangrams, chess, and math quizzes.
http://www.logicville.com/ - [ Report Dead Link ]
Puzzle Choice Crosswords, wordsearches, cryptograms, quizzes, wordplay and other interactive and printable puzzles and games.
http://www.puzzlechoice.com - [ Report Dead Link ]
Puzzletome Contests of varying difficulty and types. Also has tutorials with worked examples and practice games. [Registration required]
http://www.puzzletome.com/ - [ Report Dead Link ]
The Game A puzzle hunt run every year at Stanford.
http://zonker.stanford.edu/~snitch/game/ - [ Report Dead Link ]
The Puppeteer's Cosmic Puzzle Pictographic puzzle microcosm of old and new playing cards, poems, games and lore. New suits: the zodiac, solar system, evolution, human family, ancient elements, astronomical basis of the calendar and compass.
http://www.cosmicpuzzle.com/ - [ Report Dead Link ]