Contra Encyclopedia (Fan site dedicated to the official games in the Contra series. All versions of each game are covered. Information includes release dates, detailed game descriptions, regional differences, lots of trivia and interesting information about the games' developmental stages. There is also plenty of screenshots, links and additional resources)
The Contra Headquarters (A hosted fan "shrine" site devoted to all the games of the Contra series, including the PlayStation game Contra: Legacy of War. Content includes game info/descriptions, plot summaries, various kinds of media (images, MP3s, etc.) and links to other Contra-related sites.