Moving Arrows by Miwa Miwa
The background behind the arrows appears to be moving in a downward direction in this motion illusion created by Miwa Miwa. The design itself is relatively simple, but the motion effect is quite strong.
To see another motion illusion created by Miwa Miwa (that was also featured on the Drudge Report a while back), be sure to check out his Vertigo Motion Illusion.
(via Miwa Miwa)