The ambiguous cylinder illusion (youtube) - finalist for Illusion of the Year 2016. More up-to-date illusions!
The Best Illusion of the Year Contest (previously, previouslier) has announced the 2015 winners. [more inside]
This tech demo video from Pillow Castle Games (of Carnegie Mellon) showcases an innovative first person puzzler using the optical illusion of forced perspective.
Eye – a video optical illusion that can produce hallucination like effects for a few minutes after you watch it. [blinky slyt | via]
Blind Spot Optical Illusions. Online seminar from McCormick Lab at Yale lets you find your own visual blind spots. After that, you can make Monet's sun, and Van Gogh's ear, disappear. [more inside]
A professor of vision science at MIT understands that life isn't just black and white, even though we often see it that way. This amazing illusion proves it, and these slick, fast-loading, Flash demonstrations of lightness perception show how it's done. (My favorite is the "Koffka Ring".) White paper here, for deeper background.
I'm usually not a big fan of optical illusions (unless there's a nice magic trick built around it), but this one is pretty brain-burning. (Yes, that's my entire front-page post. But hey: at least it ain't a news story.)