Features fiendish logic puzzles created by Grant Fikes, mostly inspired by Japanese Nikoli puzzles.

Presents an (almost) daily helping of puzzles and brain teasers.

English version of Turkish language puzzle magazines.

Posts regular optical illusions and related images.

A daily puzzle based on the game designed and manufactured by the Set Game Company.

Five time US Puzzle Champion and former World Sudoku Champion posts his own handcrafted logic puzzles.

Author showcases mazes he has been drawing for twenty years.

NPR puzzler weekly discussion, brain teasers, and math problems.

Quiz blog posting questions on the world of computers, science, technology, and geekery in general.

Chronicling one man's obsessions with puzzle boxes, mechanical puzzles and disassembly puzzles.

Aggregator for the official Spyglass news blog, and the Puzzle Pirates Ocean Master blogs.

A sliding tile puzzle game for iPhone and iPad. Includes announcements and a trailer.

Offers a variety of puzzles and problem solving with numbers.

Commentary on a variety of different puzzle types, from Wired magazine.

Two-time UK sudoku champion and general puzzle fan Tom Collyer posts regular logic puzzles for readers to try.

Covers sudoku puzzles, books, games and apps.

Follows the work of this blogger, who hand draws extremely long, intricate mazes. Also reports on his attempts to "draw a line around the world".

Member of the National Puzzlers' League, creates puzzles and talks about puzzling.

Offers information on room escape games, point and click games, puzzle games, and walkthroughs.

Posts a puzzle or quiz question every day and maintains a monthly leader board of those who answer correctly.

Descriptions, reviews, and images of various kinds of puzzles including cast, disentanglement, maze, interlocking, mathematical, and electronic game puzzles.

Posting reviews of puzzle apps for the iPhone, iPod and iPad.

Posts a variety of free to download puzzles, including grid puzzles, logic and number puzzles.

Offering commentary and reviews of all manner of puzzles.

Features a variety of puzzles including 2D-assembly and 3D-assembly.

Jeopardy winner of 74 games talks about puzzles and trivia.

Offers a collection of puzzles, interactive art, software toys, and games by Jim Bumgardner.

Offers Nikoli-style pencil puzzles.

Gives results and information about various puzzles and sudoku championships. Also covers grid-based puzzles, and the types of logic and ideas used to solve them.

Random thoughts about magic and puzzles with reviews, photo galleries, and related links.

Offering mathematical puzzles and discussion of the logic behind them.

Posts roughly three new logic puzzles a week, of different types, created by the blog owner.

Dedicated to visual phenomena and real life illusions.

Blog of a puzzler who likes to create mechanical puzzles.

Collates examples of optical illusions, hidden object puzzles and similar items.

News and updates for members of the Nikoli.com site; publishers of Japanese logic puzzles.

Puzzle fan posts reviews and photographs of his wire, wooden, mechanical and manipulation puzzles.

Posts links to a wide variety of puzzles, including jigsaws, brainteasers, sudoku and word puzzles.

Features a weekly crossword, brainteasers and puzzling insights from professional puzzle maker Patrick Merrell.

Offers information about a variety of puzzles. Also offers some for sale.

Offers a collection of puzzles that can be printed off, or played on the computer without an Internet connection.

Offers brain teasers, puzzle games, and trivia.

Featuring news and downloads to help with online puzzle games.

Collection of online puzzles, games, and brain teasers.

Offering insights from a new puzzle collector.

Offering resources and tips for puzzle creators.

Blog devoted to puzzles of all types. Posts accounts of solving various puzzles.

Blog of a puzzle collector and enthusiast. Features a variety of puzzles including photos and brief reviews.

Gives a daily post offering a puzzle, riddle, math, or a statistical problem.

Posts visual quiz questions which require logical thinking.

Offering tips for collectors of wooden and vintage puzzles.

Join renowned British psychologist, magician and author Dr Richard Wiseman for puzzles, illusions and quirky, playful psychology.

Offering udpates on this puzzler's enormous collection of over 4000 puzzles and related items.

Features daily puzzles and brain sharpeners, including jigsaws, logic puzzles, rebus, hidden objects and spot the difference.

Features discussion on the latest puzzles, techniques, and competitions.

Offering daily puzzles, brainteasers and trivia quizzes.

Offers daily interactive puzzles including Sudokus, crosswords, word puzzles, and number puzzles.

Provides easy, medium, hard, and tough sudokus for kids and parents.

Showcases the mazes drawn by Yonatan Frimer, particularly for children's books.

Blog of a team of crossword puzzle solvers offering solutions and comments on the Times crosswords.

Trip Payne provides puzzles for crosswords, cryptic crosswords, cryptics, and grid puzzles.

Contains regular puzzles and crosswords from the Wall Street Journal.

Former puzzle designer shares his puzzles along with instructions.