[capisce]

Guess I'll share mine too: http://www.abstractfunandgames.com/tetromino.html :)

[vlaube]

Here is mine: http://valentinlaube.de/temp/tetris.html

Writing a simple game is a great way to practice your programming skills.

[_ex_]

mine in TypeScript: http://elrinconde-ex.blogspot.com/2012/11/typescript.html