Online Optical Illusion Links

http://dogfeathers.com/java/spirals.html

http://dogfeathers.com/java/hyperstar.html

http://dogfeathers.com/java/fechner.html

http://dogfeathers.com/java/fechner2.html

http://dogfeathers.com/java/necker.html

http://www.cs.washington.edu/homes/allen/spinner.html

http://home.austarnet.com.au/myzone/illusionzone1.html

http://www.aceviper.net/frames/illusion.html

http://udel.edu/~jgephart/fun2.htm

http://www.exploratorium.edu/exhibits/f_exhibits.html

http://www.eyetricks.com/