Hulbert began publishing Korea Review and served as its editor beginning in January 1901.
Articles covered a variety of topics, including Korean history, culture, language, politics, law, science, religion, and literature.
Its early issues had a more favorable impression of Japan, as they thought the country could be a positive influence in Korea's modernization.
However, upon the conclusion of the 1904–1905 Russo-Japanese War, the articles became more critical of Japan's encroachment on Korean sovereignty.
Hulbert was a vocal Korean independence activist, and voiced such opinions in the magazine.