Moparts: The biggest and one of the earliest. Questions are usually answered within minutes. The size is the main benefit and the main drawback. It covers all things Mopar: Muscle Car, Street Rod, Race, Trucks, and late model Hemi cars.
http://www.moparts.comDodgeCharger.com: A site dedicated to the Dodge Charger. Very informative and useful for restoration and factoids.
http://www.dodgecharger.comFor A Bodies Only: An offspring site dedicated to Dodge and Plymouth A-bodies. Well established and respected.
http://www.forabodiesonly.comFor B Bodies Only: A spawn off the success of FABO.com...Same layout, relatively new site.
http://www.forbbodiesonly.comFor E Bodies Only: A spawn off the success of FABO.com, Same layout, relatively new site.
http://www.forebodiesonly.comAnyPar: The successor to Mopar Kingdom, consider it Mopar social networking with Groups, Pics, and Vids:
http://www.anypar.comAllpar: A lucrative source of information and speculation.
http://www.allpar.comBigBlockDart: The name says it all.
http://www.bigblockdart.comLX Forums: Site focusing on Modern Dodge and Chrysler Hemi Cars on the LX Platform (Charger, Magnum, 300C).
http://www.lxforums.com/Chrysler Poly Performance: Not a forum, but a nice site with lots of info...Thanks to Belden for the link.
http://victorylibrary.com/mopar/poly-graphics.htm