Settlers of Catan

Armed Settlers of Catan
A variant with military rules.
http://members.tripod.com/~Charlemagne64/armiesofcatan.html

BoardGameGeek
Offers file downloads and reviews.
http://www.boardgamegeek.com/game/13

Catan World
Offers gameplay overviews, strategy guides, and discussion forums.
http://www.catanworld.com

Constructing a 3D Settlers of Catan Board
Article describing using silicone molds and resin pieces to create a hand-crafted board with a three-dimensional appearance.
http://www.io.com/~beckerdo/games/articles/SettlersI.html

Globetrotter Games
Review with FAQ, images and rules.
http://globetrotter-games.com/index.htm?E&game/eSetCat.htm

Intimate Settlers
2-player variant.
http://www.fortunecity.com/boozers/brewerytap/1/IntSett.html

Jon
English rules translation, English cheat sheets for German editions of the basic game, Seafarers and "Stadte und Ritter" (Cities and Knights) expansion set. Map pictures and scenario information for Seafarers and the 5/6 player expansion.
http://www.yoda.arachsys.com/siedler/

KMWs Spielplatz
Description, review, pictures and diagrams of the Seafarers of Catan expansion. [English pages on a German site]
http://www.spielbox-online.de/indxtemp.html?/spielarchiv/kmw/dssef.htm

Kulkmann's Gamebox
Descriptions and reviews of Settlers, Seafarers, "Stadte und Ritter" (Cities and Knights) and the Historical Scenarios (Alexander and Cheops).
http://www.solicitor.de/gamebox/reviews/siedlerb.htm

Loose Bits
Variants: Land Shares, Blood Rules, Poor Man's Seafarers.
http://www.gamecabinet.com/deeperDrawers/ExtraBits.html

S3D Connector
Online game finder and ELO ladder ranking for Sea3D Windows based 3-dimensional Settlers software.
http://www.s3dconnector.net/

Settlers of Cataan Optional Rules
A variety of optional rules to Settlers of Cataan.
http://stobie.home.sprynet.com/games/SOCoptions.htm

Siedler von Catan Variants
Rules for Siedler von Catan with two sets and with Entdecker pieces.
http://sbarrera.home.mindspring.com/game/catan/SMCatan.html

Unicorn's Rest
News, variant games rules and site links.
http://www.unicornsrest.org/reference/catan/

University of Catan
Scenario directory, FAQ and listing of available game products.
http://www.universityofcatan.com/

Yahoo Groups: Settlers
Forum for discussing rules, variants and strategy.
http://groups.yahoo.com/group/Settlers/