Gameaholic
Offers help, screenshots, cheats, demo downloads, servers, and extra levels.

PlanetKingpin
News, information, FAQs, and reviews.

Kingpin Life of Crime
News, cheat codes, binds, screenshots, and downloads.

I.Am/KingPin
Information, FAQ, cheats, walkthrough, console commands, and downloads.

jjaf.de
Game information, hacks, downloads, and forums.

Bullseye Crosshairs
Replacement crosshairs with installation instructions and tips for creating custom designs.

Kingpin Forever HeadQuarters: Posionville
Features news, game servers, gang list, downloads, forums, chat, reviews, skin check system, walkthroughs, screenshots, and wallpapers and desktop themes.

The Adrenaline Vault
Review by Justin Mills, score 4/5. "Despite the controversy this title has stirred up, Kingpin is more than just Quake II with the "F-word".

GameSpot
Offers a demo, game information, hints, screen shots, and a review (7.3).