All Things Marbling: Marbling Blog by John Ang Cheng Siew (Singapore)
Paper Marbling Instructions: By Ky Lee, in Korean (Korea)
Suminagashi Instructions: By Ky Lee, in Korean (Korea)
Suminagashi Demostration: Suminagashi Movie in MPEG Format (Japan)
Suminagashi: Chemie Laboratorium, in Japanese (Japan)
Tadao Fukada: (Japan)
Wikipedia: Article on Suminagashi, in Japanese (Japan)
Wikipedia #2: Article on “Ink Dividing”, in Japanese (Japan)