Notice: Waller's has closed indefinitely, and is no longer accepting orders.
Waller's Go Books - an American company that specialises in Korean Go books.
Has a page containing some Korean-English-Japanese translations: Waller's Go Books Free Info. (Click on the 'Korean to English Go Glossary' link once there. Geocities does not allow a direct link to the glossary from external websites, because it's a PDF file.)