This is an online Korean bookstore that I use now, and they have a branch in LA.
You can order Korean books and the shipping fee is free when you order 50$ more.
Twochois is equally good. I believe it is a relatively new online bookstore. It is owned by two sisters which reflect the name twochois. You can find a variety of books and some books from well-known universities in Korea. Prices are reasonable too. Special orders are accepted, and if you need a book and if it is not available in their catalogue they will go out of their way to get it for you. They will charge the appropriate price, of course. They ship your parcel well-packed and fast, and a cute handwritten note with a cute gift and a business card are included. They sent me a bookmark.<o:p></o:p>
I don't think there are korean bookstores in the US. I buy books from twochois.com and 다락원 in korea. They have a wide range of books that you can select. I came to know 다락원 because I saw their office in Seoul. If you are looking for a book just send an e-mail to the manager that's what I do. He responds promptly.
My pleasure, Carita ^^
