Call of Duty Series

Call Of Duty Boards
A forum offering discussion, support, downloads, modifications, and customization information.
http://www.codboards.com/

Call of Duty HQ
Features forums, news, downloads, interviews, and a live chat pertaining to every version of Call of Duty.
http://www.codhq.com/

Call of Duty Junkie
Features news regarding the Call of Duty series. Also includes photos and videos pertaining to Call of Duty.
http://www.callofdutyjunkie.com

Call Of Duty Message Boards
Community website featuring tips, tactics, general chat and clan registration for Call of Duty 4: Modern Warfare and Call of Duty: World at War.
http://www.codmb.com

Charlie Oscar Delta
Call of Duty: Modern Warfare and Call of Duty: World at War community featuring forums, news, matches, and patches/updates.
http://www.charlieoscardelta.nl

COD Bunker
Includes glitches, news, strategy, and tips to improve your gameplay in Modern Warfare, World at War, Zombies, and Modern Warfare 2.
http://www.CODBUNKER.com

CoD File on Filefront
Offers downloads as well as discussion forums and screen shots.
http://cod.filefront.com/

FilePlanet
Contains patches, demos, trailers, and gameplay videos.
http://www.fileplanet.com/98221/0/section/Call-of-Duty-Series

Planet Call of Duty
Offers picture of the day, patches, news, discussion forums, clan directory, servers, mods, downloads, cheats, guides, and FAQs.
http://planetcallofduty.gamespy.com/

31st Squad
Help website for Call of Duty series games. Also offers a welcoming community to solve problems and a large clan.
http://www.31stsquad.com/