Danny runs the bingo history website located at http://danny.cdyn.com
Danny has been collecting and archiving stories and history on all the bingo machines - Bally, United, and the solid states from overseas.
The stories that have been archived at Danny's site are fascinating - he has lots of info on bingos and the law and various player stories and info on playing these great games.
Note that there's a couple of bad words, if you care about such things.