I found a link to this page in a comment by suddenly susan to this Metropolitician post.
In these articles, Horace H. Underwood the differences between Korean and American culture in a very clear way. They're well worth your time.
Korean Culture: "In" and "Out"
No Men Are Created Equal
Honesty vs. Loyalty: Which is More Important?
Heredity and Environment
(The second sentence of the conclusion to this piece really needs updating.)
Ch’emyon or Social Face in Korean Society