Beat People Up

Official fan site with rules, in-depth strategy, complete button lists and a current events page.
http://www.beatpeopleup.com/

Button Men Online

Unofficial site. Login required. Offers the opportunity to play against other people online, as well as ranking and tournament systems. Polls, a rules list and a message board are also on the site.
http://www.buttonmen.dhs.org/

Warp Zone

Contains all the rules on Special Dice and a complete roster of all available Button Men.
http://www.randomdice.com/games/buttonmen/

Johnson, Hunter - Bruno! Button Men

Publisher of the Bruno! expansion of Button Men. Currently features four different characters drawn by Dan Smith and introduces the Berserk die type. Links to other Button Men sites are featured, as well as links to other gaming sites.
http://www.hunterandlori.com/Bruno.html

Stone Press

Publishers of the Renaissance expansion of Button Men. Currently features a single Button Man, Guillermo, and links to related sites.
http://members.aol.com/bfogartyjr/