History of Tae Kwon Do: Yulgok - Concise biography of this Korean thinker.
Ojukheon Municipal Museum - Place where Yulgok and his mother, Shin Saimdang, lived. Information on buildings, exhibits, and history.
Yul-Gok - Illustrated biography.
Yulgok Cultural Festival - An annual celebration of this thinker, held in Paju, South Korea.
Yulgok Yi I (1536-1584) - Bibliography of primary and secondary sources in various languages.