I don’t know why I should be surprised to find a Tetris Wiki online, considering that there’s a wiki for everything else online. The wiki covers everything from from how the game is played, to how it’s programed, to a description of the blocks, strategies, clearing more than four lines at a time, and incidences of the game. It drives fanaticism for the game to a new level. I’m not that mad about Tetris myself, having played it to death back in my NES days, but this is something else.
[Link: Tetris Wiki]