Bullseye Crosshairs - Replacement crosshairs with installation instructions and tips for creating custom designs.
Gameaholic - Offers help, screenshots, cheats, demo downloads, servers, and extra levels.
GameSpot - Offers a demo, game information, hints, screen shots, and a review (7.3).
jjaf.de - Game information, hacks, downloads, and forums.
Kingpin Forever HeadQuarters: Posionville - Features news, game servers, gang list, downloads, forums, chat, reviews, skin check system, walkthroughs, screenshots, and wallpapers and desktop themes.