Best Illusion of the Year
These illusions are amazing. Many involve the effect of motion on perception -click through to check them out, and make sure you play with the settings as applicable.
Let me know what you think in the comments.
Update: check out the finalists from previous years too - links are on the left.
The top illusion for 2010 is amazing.
I can’t resist adding this update on the gorilla illusion (see the 2010 finalists page if it won’t load):