The Depots Platform  
   A Website Devoted to the 18XX Game System.
   http://www.geocities.com/TimesSquare/Arena/5276/depot/default.htm

Minstrel HT  
   18xx games - supplement to the paper based Minstrel and links into the UK postal gaming hobby
   http://pages.eidosnet.co.uk/~18xx/

Information about 18xx + 18xx/PC Moderator  
   This german site is the homepage of the 18xx moderator program. It contains information about 18xx variants and other free software.
   http://www.18xx.de

Rails18xx  
   Marco Rocci's Rails18xx software suite. Includes information and downloads for TileDesigner, GameSetDesigner and GameModerator applications.
   http://www.rails18xx.it/

Ps18xx  
   Contains downloadable PostScript files of maps and tiles for most 18xx games. Postcard ware by Matthias Klose.
   http://swt.cs.tu-berlin.de/~doko/ps18xx/

Mark Derrick  
   Includes information concerning Mark Derrick's 18xx designs: 18TN (Tennessee, also known as 1851), 18GA (Georgia) and 18AL (Alabama).
   http://home.chattanooga.net/~derrick/

Mostly 1835  
   Contains information on 1835 (Germany), including a FAQ and rules for variants. Maintained by Bill Stoll. The page also hosts 1835 pbem games.
   http://askwaltstollmd.com/bill/index.html

Crisis  
   By Robert Jasiek. An urban game design. Features general and historical information.
   http://home.snafu.de/jasiek/crisis.html

1870 Play-by-eMail  
   Site for pbem games of 1870 (Mississippi Valley). Includes FAQ, rules clarification, reviews and strategy guidelines. Maintained by Nick Markevich.
   http://pw2.netcom.com/~njm1/1870/index_70.html

Lonny's 18xx  
   Leonhard Orgler's 18xx designs: 1837 (Austria) and 1854 (Austria).
   http://www.8ung.at/18xx/

Westpark Gamers  
   Links and information about the series.
   http://www.westpark-gamers.de/index.html?/1830.html

18xx Rules Difference List  
   Includes an analytical list of rule differences among 18xx games. It covers most games and is maintained by Nick Wedd.
   http://www.fwtwr.com/18xx/rules_difference_list/

Traingames  
   Offers information about 18xx and other railroad games. Hosts a complete playtest kit for the authors design 1876v2.
   http://traingames.virtualave.net/76v2.htm

Yahoo! Groups: 18xx  
   Discussion group for 18xx fans. Requires joining to post.
   http://games.groups.yahoo.com/group/18xx/