Tetris and the Periodic Table

E*chalk is an online resource site for teachers. They create games, simulations, activities and puzzles designed with a "focus on learning through fun." Some of their materials are free and others are subscription only.
One of their free online educational games that I learned about thru Woodchurch Science blog is Periodic Table Tetris. Periodic Table Tetris uses the style of the classic video game Tetris to help students memorize the periodic table of elements. To play the game, simply use the keyboard's arrow keys to move element blocks into the proper place. The game has three levels. Students can progress based on ability.
This would be a great game on a SMARTboard! I wish that I had access to something like this as I struggled with high school chemistry!