Ilusiones ópticas:

http://en.wikipedia.org/wiki/Optical_illusion

Ilusiones de tamaño:
http://en.wikipedia.org/wiki/Ponzo_illusion
http://en.wikipedia.org/wiki/Muller-Lyer_illusion
http://en.wikipedia.org/wiki/Jastrow_illusion
http://en.wikipedia.org/wiki/Sander_illusion
http://en.wikipedia.org/wiki/Ebbinghaus_illusion

Ilusiones de color:
http://en.wikipedia.org/wiki/Simultaneous_contrast
http://en.wikipedia.org/wiki/File:Simultaneous_Contrast.svg
http://en.wikipedia.org/wiki/File:Gradient-optical-illusion.svg
http://en.wikipedia.org/wiki/White%27s_illusion
http://en.wikipedia.org/wiki/Bezold_Effect
http://en.wikipedia.org/wiki/Chubb_illusion
http://en.wikipedia.org/wiki/Same_color_illusion

Ilusiones de curvatura o de distorsión:
http://en.wikipedia.org/wiki/Ehrenstein_illusion
http://en.wikipedia.org/wiki/File:Ehrenstein.svg
http://en.wikipedia.org/wiki/Wundt_illusion
http://en.wikipedia.org/wiki/Hering_illusion
http://en.wikipedia.org/wiki/Orbison_illusion
http://en.wikipedia.org/wiki/Zollner_illusion
http://en.wikipedia.org/wiki/Cafe_wall_illusion

Contornos ilusorios:
http://en.wikipedia.org/wiki/Kanizsa_triangle
http://sharp.bu.edu/~slehar/webstuff/bubw3/bubw3.html
(Figure 4 (Kanizsa, Tse, Idesawa))
http://sharp.bu.edu/~slehar/Spatial/Spatial.htm
(Figures 1, 4, 5, 11, 22)

Ilusiones de movimiento:
http://en.wikipedia.org/wiki/Motion_illusion
http://en.wikipedia.org/wiki/File:Anomalous_motion_illusion1.png
http://en.wikipedia.org/wiki/Peripheral_drift_illusion
(Akiyoshi_Kitaoka, Rotating snakes:)
http://en.wikipedia.org/wiki/Akiyoshi_Kitaoka
http://www.ritsumei.ac.jp/~akitaoka/index-e.html
(Spiral aftereffect)
http://onlyonline.org.uk/humour/illusions/spiral-aftereffect.php
http://wisebytes.net/illusions/spiral.php