Bungie.net - Official developer's site. Features game background, screen shots, wallpapers, and FAQ. - http://www.bungie.net/Projects/Oni/
Rockstar Games - Official publisher's site. Includes game background, character biographies, weapon descriptions, screen shots, and movies. [Flash Required] - http://www.rockstargames.com/oni/
Oni Online - News, game information and guides, cheat codes, screenshots, downloads, and multimedia. - http://www.3dactionplanet.com/oni/
Oni Central - News, links to previews, multimedia archives, and forums. - http://oni.bungie.org/