So I haven't posted for a while. Partially because I'm lazy, but mostly because I haven't found many things worth posting. Well I just ran into a site where I wasted a good amount of time. If you've got time to spare and like optical illusions then check out this site:
55 Optical Illusions & Visual Phenomena
There are a ton of neat illusions here, and you can spend a long time looking at each one. Some of my favorites are:
Rapid colored afterimage - This one is just cool. It's a neat effect and you can easily shift your eyes to break it and see how it works.
Face in Beans - This one freaked me out for a second once I snapped into seeing it.
Spoke Illusion - Another neat one that makes sense when you think about it.
I'm sure there are tons of other good Illusion sites out there, but I haven't spent the time to catalog them. Feel free to drop links into comments on this post.