The Korean War Online gives a good overview of proceedings and has a whole host of links, notably the weapons and equipment section, which is particularly useful. Interestingly he conjectures the use of captured WWII Japanese tanks by Korean forces.
Arlequin’s World has an excellent overview of the forces involved and organisational details – highly recommended.
Balagan’s site is an excellent war gamers resource for the Korean gamer. Info is related to Crossfire rules and the author’s meticulous approach really helps people ‘break into’ a new period such as this with his many and varied sources that he uses for compiling his information.
Crossfire for the Korean war OOB’s and information aimed at players of the popular Crossfire wargame rules.