Apolyton Civilization Site: One of the oldest community sites that covers all Civilization games. Offers news coverage, interviews, file downloads and forums.
civ.org.pl: Fansite about games such as Civ 1 - 4, SMAC and Freeciv. Site in English and Polish. Includes downloads, screenshots, guides, and forums. [English and Polish]
Civilization Fanatics Center: Fan site dedicated to the entire Civilization series. Includes news related to the titles, information, downloads, and bulletin boards.
Civilization Fascist Site: Offers a patch that adds fascism to the Civilization II and III government and unit structures.
Civilization Gaming Network: Community website with forums and patches for Civ III.
FilePlanet - Civilization Series: Download repository with patches for most titles in the series.
Gamecatcher Forum - Civ Related: Forum for general discussion about the Civilization series.
GeO:Civ: Bilingual fan site in French and English with files for Civ II and Civ III and information about the different concepts in Civ III
Javier Arriaga's Website of Civilization: Personal website dedicated to Civ, Civ II and Civ III. Several files available for download.
Nethog's Games Page: Downloadable technology trees and unit summaries for Civilization I to III and Play the World. Available in PDF, Excel, and PowerPoint.
Planet Civilization: Provides Civilization and Pirates news, information about the titles and bulletin boards.