Blogging History: Tic-Tac-Toe squared; Corrupt files for sale; Perfect pint-o-matic

One year ago today
Tic-Tac-Toe squared: "Ultimate Tic-Tac-Toe," in which each square is made up of another, smaller Tic-Tac-Toe board, and to win the square you have to win its mini-game.

Five years ago today
Corrupted files for sale to students to buy extra time: sells pre-corrupted files ($5.95, on sale for $3.95 until June 30) in a variety of formats. The target market is students who blew their assignment deadline and need an excuse.

Ten years ago today
Perfect pint apparatus: A student has invented a device for hand-free, no-attention "perfect pint" pouring that will empty a can of lager into a pint sleeve without your having to take your eyes off the football.