http://en.wikipedia.org/wiki/9_ball_pool

http://www.bca-pool.com/play/tournaments/rules/rls_9bl.shtml

http://www.candystand.com/play.do?id=17886

http://www.bca-pool.com/play/tournaments/rules/pdf/BCA9BallRules.pdf

http://www.bestbilliard.com/rules/display.cfm?file=nine.cfm

http://www.pool-table-rules.com/bca9ball.php

http://zone.msn.com/en/bankshot9ball/default.htm

http://www.teagames.com/games/nineball/play.php

http://www.tribilliards.com/9ballrules.html

http://www.freearcade.com/Nineball.jav/Nineball.html