Categories

Amos Storkey - Visual Illusion of the Month - Collection of illusions and images chosen for novelty and distinction from the usual set found in most collections.

Eyetricks.com - Optical illusions, 3D stereograms and anaglyphs, fractals and brain teasers

IllusionWorks - A multimedia museum of optical and sensory illusions, with online demonstrations and explanations.

Eye Magic: Optical Illusions - Offers a number of optical illusions for viewing, as well as explanations on how they work.

Opticalillusions.ws - Many optical illusions, optic tricks and brain teasers.

Skytopia - Dynamic Optical Illusions - A selection of old, new and original optical illusions. Many pictures are enhanced via the use of 3D and animation.

Optical Illusions for Kids - Offers a collection of illusions, brain teasers, and puzzles for children.

Just Optical Illusions - Focus on geometric optical illusions by Gianni A. Sarcone and Marie J. Waeber

Mindfake.com - Site contains a collection of optical illusions, online games, and other fun things.

Cut the knot: Visual Illusions - A collection of about 20 illusions - all accompanied by Java applets. Interactively changeable attributes help investigate which ones are in fact responsible for tricking the brain.

Mentalillusion.com - Various illusion resources, including some illusion puzzles.

Akiyoshi's illusion pages - Many works of Akiyoshi Kitaoka. Designs around standard illusions crafted to maximise the illusory effect.

Fun puzzles - A selection of standard optical illusions along with some online puzzles and games.

All Optical Illusions - Gallery of optical illusions, 3d art, puzzles, and visual gags.

Brainteasers - Brainteasers, riddles, paradoxes, optical illusions etc.

Optical Illusions? - Comments on the terms 'Optical Illusion' and 'Visual Illusion'.

Cool Optical Illusions - A growing collection of optical illusions and eye tricks, including original illusion pictures and a collection of optical illusion desktop wallpaper.

Mchael Bach: Optical Illusions & Visual Phenomena - The stress here is on relative novelty and interactivity, in combination with a scientific background. Regularly updated.

Amazing Eyetricks - Gallery of pictures that will trick your eyes.

Optical Magic Optical Illusions - A selection of common images.

Optillusions - A collection of riddles and optical illusions of many different forms with thumbnail browsing.