Cryptogram Game
Here's a fun cryptogram game for those of you that like word games. The coolest part about it is you can make your own. For example, here's one I made, just for kicks. Can you decipher it? I'll give you a hint, it is a quote by Benoit Mandelbrot.
Easy to Make Science Toys
This little easy-to-make paper sculpture can be turned inside-out over and over while you watch it change colors. You can find free detailed instructions on how to fold this printout at Simon Quellon Field's site called Science Toys You Can Make With Your Kids. It was designed years ago by a bored mathematics student. The toy is called a Kaleidocycle,
iSketch
Fun for all ages, iSketch is a fast paced game in which players take turns drawing and trying to guess the word that's being drawn. Think chatroom Pictionary! I'm totally addicted.
Addicted to Words
I should have known by the title of the site that I'd be hopelessly addicted to the games hosted there. I've been playing Words at 2Addicted.com for a couple days now and I am sad to say that I still suck. My highest score was 549. Here's a variant of the game link which I also suck at but can't
Plasma Pong
Here's a free game by Steve Taylor called Plasma Pong that combines surreal colorful graphics with fun, fast-paced pong. You can inject colorful plasma fluid into the environment, create a vacuum effect, and blast shock waves into the playing area. Every action has fluid-based kinetic effects on the ball which makes it harder to predict and control. I played this
Flickr Sudoku
As a software reviewer, I've seen many a Sudoku game, but nothing quite as cool as this! Flickr Sudoku lets you type in any picture tag and it brings in 9 corresponding images that you use to fill in the puzzle instead of the usual numbers. Weeee! Lots of fun!
Falling Sand Game
Mike sent me the link to this site and now I'm hopelessly addicted. I've played with my sand gardens for days on end. Here's a shot of one of the cool gardens Mike made: And here's one of mine: Now it's your turn. What can you do with infinite amounts of sand, oil, water, salt and plantlife? Oh, and lets
Play Colorama!
Ok, so I got to IQ level 1420 before I started getting bored. I might go back to it later though. 
Colorama is a fun game in which you have to find the one block that is different in the two pictures. At first, the blocks start out very large and each level they get smaller and smaller, making