» 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
» Holiday Puzzles
Collection of original puzzles developed over the years to celebrate the winter holidays.
http://www.radix.net/~erewhon/puzl/index.html
» 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/
» MyCharades.com
Includes charades, riddles, and enigmas.
http://www.mycharades.com/
» Puzzle Choice
Crosswords, wordsearches, cryptograms, quizzes, wordplay and other interactive and printable puzzles and games.
http://www.puzzlechoice.com
» Puzzle Monster
Original trivia, logic, visual and word puzzles.
http://www.puzzlemonster.com/
» Puzzle Space
Information about language and culture independent puzzles and logic games.
http://www.geocities.com/puzzlespace/
» Puzzletome
Contests of varying difficulty and types. Also has tutorials with worked examples and practice games. [Registration required]
http://www.puzzletome.com/
» Rainier Beer Bottlecap Puzzles
The answers to the bottlecap rebus style puzzles found on Rainier Beer and Pearl Beer caps.
http://www.geocities.com/shabber_1/rainier.html
» The Game
A puzzle hunt run every year at Stanford.
http://zonker.stanford.edu/~snitch/game/
» 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/
» The Puzzle Page
Collection of puzzles, brain teasers, mind benders, logic problems, cryptograms, patterns, and enigmas.